Finding the Fourth Proportional to 72,284.50, 99,814.17 and 45,471.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,284.50 : 99,814.17 = 45,471.88 : x
2. Step 2: Convert to fraction form
   72,284.50/99,814.17 = 45,471.88/x
3. Step 3: Cross multiply
   72,284.50x = 99,814.17 × 45,471.88
4. Step 4: Simplify right side
   72,284.50x = 4,538,737,960.54
5. Step 5: Solve for x
   x = 4,538,737,960.54/72,284.50
6. Step 6: Final answer
   x = 62,789.92