Finding the Fourth Proportional to 123,789,791,018.86, 185,721,117,386.37 and 39,941,949,421.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,789,791,018.86 : 185,721,117,386.37 = 39,941,949,421.42 : x
2. Step 2: Convert to fraction form
   123,789,791,018.86/185,721,117,386.37 = 39,941,949,421.42/x
3. Step 3: Cross multiply
   123,789,791,018.86x = 185,721,117,386.37 × 39,941,949,421.42
4. Step 4: Simplify right side
   123,789,791,018.86x = 7,418,063,477,135,996,092,416
5. Step 5: Solve for x
   x = 7,418,063,477,135,996,092,416/123,789,791,018.86
6. Step 6: Final answer
   x = 59,924,678,893.80