Finding the Fourth Proportional to 72,147.52, 99,499.12 and 45,292.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72,147.52 : 99,499.12 = 45,292.53 : x
2. Step 2: Convert to fraction form
   72,147.52/99,499.12 = 45,292.53/x
3. Step 3: Cross multiply
   72,147.52x = 99,499.12 × 45,292.53
4. Step 4: Simplify right side
   72,147.52x = 4,506,567,137.46
5. Step 5: Solve for x
   x = 4,506,567,137.46/72,147.52
6. Step 6: Final answer
   x = 62,463.23