Finding the Fourth Proportional to 123,789,791,017.86, 185,721,117,384.87 and 39,941,949,420.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,789,791,017.86 : 185,721,117,384.87 = 39,941,949,420.42 : x
2. Step 2: Convert to fraction form
   123,789,791,017.86/185,721,117,384.87 = 39,941,949,420.42/x
3. Step 3: Cross multiply
   123,789,791,017.86x = 185,721,117,384.87 × 39,941,949,420.42
4. Step 4: Simplify right side
   123,789,791,017.86x = 7,418,063,476,890,362,970,112
5. Step 5: Solve for x
   x = 7,418,063,476,890,362,970,112/123,789,791,017.86
6. Step 6: Final answer
   x = 59,924,678,892.30