Finding the Fourth Proportional to 89,520,426.24, 134,280,198.72 and 77,352,861.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,520,426.24 : 134,280,198.72 = 77,352,861.12 : x
2. Step 2: Convert to fraction form
   89,520,426.24/134,280,198.72 = 77,352,861.12/x
3. Step 3: Cross multiply
   89,520,426.24x = 134,280,198.72 × 77,352,861.12
4. Step 4: Simplify right side
   89,520,426.24x = 10,386,957,562,754,162
5. Step 5: Solve for x
   x = 10,386,957,562,754,162/89,520,426.24
6. Step 6: Final answer
   x = 116,028,910.93