Finding the Fourth Proportional to 42,167.25, 63,259.98 and 15,871.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,167.25 : 63,259.98 = 15,871.91 : x
2. Step 2: Convert to fraction form
   42,167.25/63,259.98 = 15,871.91/x
3. Step 3: Cross multiply
   42,167.25x = 63,259.98 × 15,871.91
4. Step 4: Simplify right side
   42,167.25x = 1,004,056,629.80
5. Step 5: Solve for x
   x = 1,004,056,629.80/42,167.25
6. Step 6: Final answer
   x = 23,811.29