Finding the Fourth Proportional to 42,131.82, 58,134.33 and 25,129.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,131.82 : 58,134.33 = 25,129.72 : x
2. Step 2: Convert to fraction form
   42,131.82/58,134.33 = 25,129.72/x
3. Step 3: Cross multiply
   42,131.82x = 58,134.33 × 25,129.72
4. Step 4: Simplify right side
   42,131.82x = 1,460,899,289.95
5. Step 5: Solve for x
   x = 1,460,899,289.95/42,131.82
6. Step 6: Final answer
   x = 34,674.49