Finding the Fourth Proportional to 42,151.60, 63,218.82 and 15,488.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,151.60 : 63,218.82 = 15,488.43 : x
2. Step 2: Convert to fraction form
   42,151.60/63,218.82 = 15,488.43/x
3. Step 3: Cross multiply
   42,151.60x = 63,218.82 × 15,488.43
4. Step 4: Simplify right side
   42,151.60x = 979,160,089.26
5. Step 5: Solve for x
   x = 979,160,089.26/42,151.60
6. Step 6: Final answer
   x = 23,229.49