Finding the Fourth Proportional to 101,066,892.55, 139,472,732.05 and 54,657,146.61

Step by Step Solution

1. Step 1: Write the proportion equation
   101,066,892.55 : 139,472,732.05 = 54,657,146.61 : x
2. Step 2: Convert to fraction form
   101,066,892.55/139,472,732.05 = 54,657,146.61/x
3. Step 3: Cross multiply
   101,066,892.55x = 139,472,732.05 × 54,657,146.61
4. Step 4: Simplify right side
   101,066,892.55x = 7,623,181,563,617,454
5. Step 5: Solve for x
   x = 7,623,181,563,617,454/101,066,892.55
6. Step 6: Final answer
   x = 75,427,089.64