Finding the Fourth Proportional to 42,371.86, 58,475 and 25,378.87

Step by Step Solution

1. Step 1: Write the proportion equation
   42,371.86 : 58,475 = 25,378.87 : x
2. Step 2: Convert to fraction form
   42,371.86/58,475 = 25,378.87/x
3. Step 3: Cross multiply
   42,371.86x = 58,475 × 25,378.87
4. Step 4: Simplify right side
   42,371.86x = 1,484,029,423.25
5. Step 5: Solve for x
   x = 1,484,029,423.25/42,371.86
6. Step 6: Final answer
   x = 35,023.94