Finding the Fourth Proportional to 42,089.87, 63,116.32 and 15,776.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,089.87 : 63,116.32 = 15,776.15 : x
2. Step 2: Convert to fraction form
   42,089.87/63,116.32 = 15,776.15/x
3. Step 3: Cross multiply
   42,089.87x = 63,116.32 × 15,776.15
4. Step 4: Simplify right side
   42,089.87x = 995,732,650.12
5. Step 5: Solve for x
   x = 995,732,650.12/42,089.87
6. Step 6: Final answer
   x = 23,657.30