Finding the Fourth Proportional to 42,158.72, 63,247.20 and 22,434.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,158.72 : 63,247.20 = 22,434.38 : x
2. Step 2: Convert to fraction form
   42,158.72/63,247.20 = 22,434.38/x
3. Step 3: Cross multiply
   42,158.72x = 63,247.20 × 22,434.38
4. Step 4: Simplify right side
   42,158.72x = 1,418,911,718.74
5. Step 5: Solve for x
   x = 1,418,911,718.74/42,158.72
6. Step 6: Final answer
   x = 33,656.42