Finding the Fourth Proportional to 42,142.64, 63,223.38 and 15,847.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,142.64 : 63,223.38 = 15,847.61 : x
2. Step 2: Convert to fraction form
   42,142.64/63,223.38 = 15,847.61/x
3. Step 3: Cross multiply
   42,142.64x = 63,223.38 × 15,847.61
4. Step 4: Simplify right side
   42,142.64x = 1,001,939,153.00
5. Step 5: Solve for x
   x = 1,001,939,153.00/42,142.64
6. Step 6: Final answer
   x = 23,774.95