Finding the Fourth Proportional to 42,197.25, 58,239.50 and 25,430.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,197.25 : 58,239.50 = 25,430.25 : x
2. Step 2: Convert to fraction form
   42,197.25/58,239.50 = 25,430.25/x
3. Step 3: Cross multiply
   42,197.25x = 58,239.50 × 25,430.25
4. Step 4: Simplify right side
   42,197.25x = 1,481,044,917.72
5. Step 5: Solve for x
   x = 1,481,044,917.72/42,197.25
6. Step 6: Final answer
   x = 35,098.14