Finding the Fourth Proportional to 42,242.30, 58,290.42 and 25,243.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,242.30 : 58,290.42 = 25,243.17 : x
2. Step 2: Convert to fraction form
   42,242.30/58,290.42 = 25,243.17/x
3. Step 3: Cross multiply
   42,242.30x = 58,290.42 × 25,243.17
4. Step 4: Simplify right side
   42,242.30x = 1,471,434,981.43
5. Step 5: Solve for x
   x = 1,471,434,981.43/42,242.30
6. Step 6: Final answer
   x = 34,833.21