Finding the Fourth Proportional to 72,256,350.56, 99,713,861.75 and 39,216,600.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,256,350.56 : 99,713,861.75 = 39,216,600.72 : x
2. Step 2: Convert to fraction form
   72,256,350.56/99,713,861.75 = 39,216,600.72/x
3. Step 3: Cross multiply
   72,256,350.56x = 99,713,861.75 × 39,216,600.72
4. Step 4: Simplify right side
   72,256,350.56x = 3,910,438,702,499,030.50
5. Step 5: Solve for x
   x = 3,910,438,702,499,030.50/72,256,350.56
6. Step 6: Final answer
   x = 54,118,962.17