Finding the Fourth Proportional to 42,158.02, 63,218.50 and 22,431.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,158.02 : 63,218.50 = 22,431.89 : x
2. Step 2: Convert to fraction form
   42,158.02/63,218.50 = 22,431.89/x
3. Step 3: Cross multiply
   42,158.02x = 63,218.50 × 22,431.89
4. Step 4: Simplify right side
   42,158.02x = 1,418,110,247.42
5. Step 5: Solve for x
   x = 1,418,110,247.42/42,158.02
6. Step 6: Final answer
   x = 33,637.97