Finding the Fourth Proportional to 42,147.30, 63,196.32 and 15,854.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,147.30 : 63,196.32 = 15,854.10 : x
2. Step 2: Convert to fraction form
   42,147.30/63,196.32 = 15,854.10/x
3. Step 3: Cross multiply
   42,147.30x = 63,196.32 × 15,854.10
4. Step 4: Simplify right side
   42,147.30x = 1,001,920,776.91
5. Step 5: Solve for x
   x = 1,001,920,776.91/42,147.30
6. Step 6: Final answer
   x = 23,771.89