Finding the Fourth Proportional to 72,466.28, 99,961.10 and 45,566.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,466.28 : 99,961.10 = 45,566.20 : x
2. Step 2: Convert to fraction form
   72,466.28/99,961.10 = 45,566.20/x
3. Step 3: Cross multiply
   72,466.28x = 99,961.10 × 45,566.20
4. Step 4: Simplify right side
   72,466.28x = 4,554,847,474.82
5. Step 5: Solve for x
   x = 4,554,847,474.82/72,466.28
6. Step 6: Final answer
   x = 62,854.72