Finding the Fourth Proportional to 134,568,300.38, 185,704,329.24 and 72,688,639.55

Step by Step Solution

1. Step 1: Write the proportion equation
   134,568,300.38 : 185,704,329.24 = 72,688,639.55 : x
2. Step 2: Convert to fraction form
   134,568,300.38/185,704,329.24 = 72,688,639.55/x
3. Step 3: Cross multiply
   134,568,300.38x = 185,704,329.24 × 72,688,639.55
4. Step 4: Simplify right side
   134,568,300.38x = 13,498,595,050,072,364
5. Step 5: Solve for x
   x = 13,498,595,050,072,364/134,568,300.38
6. Step 6: Final answer
   x = 100,310,362.93