Finding the Fourth Proportional to 42,192.74, 58,231.77 and 25,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,192.74 : 58,231.77 = 25,422.50 : x
2. Step 2: Convert to fraction form
   42,192.74/58,231.77 = 25,422.50/x
3. Step 3: Cross multiply
   42,192.74x = 58,231.77 × 25,422.50
4. Step 4: Simplify right side
   42,192.74x = 1,480,397,172.83
5. Step 5: Solve for x
   x = 1,480,397,172.83/42,192.74
6. Step 6: Final answer
   x = 35,086.54