Finding the Fourth Proportional to 102,648,820.83, 141,655,369.64 and 56,240,832.03

Step by Step Solution

1. Step 1: Write the proportion equation
   102,648,820.83 : 141,655,369.64 = 56,240,832.03 : x
2. Step 2: Convert to fraction form
   102,648,820.83/141,655,369.64 = 56,240,832.03/x
3. Step 3: Cross multiply
   102,648,820.83x = 141,655,369.64 × 56,240,832.03
4. Step 4: Simplify right side
   102,648,820.83x = 7,966,815,849,789,597
5. Step 5: Solve for x
   x = 7,966,815,849,789,597/102,648,820.83
6. Step 6: Final answer
   x = 77,612,346.50