Finding the Fourth Proportional to 28,061.31, 42,045.71 and 25,167.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,061.31 : 42,045.71 = 25,167.63 : x
2. Step 2: Convert to fraction form
   28,061.31/42,045.71 = 25,167.63/x
3. Step 3: Cross multiply
   28,061.31x = 42,045.71 × 25,167.63
4. Step 4: Simplify right side
   28,061.31x = 1,058,190,872.37
5. Step 5: Solve for x
   x = 1,058,190,872.37/28,061.31
6. Step 6: Final answer
   x = 37,709.96