Finding the Fourth Proportional to 101,267,505.52, 139,749,585.72 and 54,857,759.68

Step by Step Solution

1. Step 1: Write the proportion equation
   101,267,505.52 : 139,749,585.72 = 54,857,759.68 : x
2. Step 2: Convert to fraction form
   101,267,505.52/139,749,585.72 = 54,857,759.68/x
3. Step 3: Cross multiply
   101,267,505.52x = 139,749,585.72 × 54,857,759.68
4. Step 4: Simplify right side
   101,267,505.52x = 7,666,349,188,807,320
5. Step 5: Solve for x
   x = 7,666,349,188,807,320/101,267,505.52
6. Step 6: Final answer
   x = 75,703,940.27