Finding the Fourth Proportional to 89,445.46, 123,437.71 and 52,645

Step by Step Solution

1. Step 1: Write the proportion equation
   89,445.46 : 123,437.71 = 52,645 : x
2. Step 2: Convert to fraction form
   89,445.46/123,437.71 = 52,645/x
3. Step 3: Cross multiply
   89,445.46x = 123,437.71 × 52,645
4. Step 4: Simplify right side
   89,445.46x = 6,498,378,242.95
5. Step 5: Solve for x
   x = 6,498,378,242.95/89,445.46
6. Step 6: Final answer
   x = 72,651.85