Finding the Fourth Proportional to 42,139.64, 58,151.33 and 23,989.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,139.64 : 58,151.33 = 23,989.25 : x
2. Step 2: Convert to fraction form
   42,139.64/58,151.33 = 23,989.25/x
3. Step 3: Cross multiply
   42,139.64x = 58,151.33 × 23,989.25
4. Step 4: Simplify right side
   42,139.64x = 1,395,006,382.50
5. Step 5: Solve for x
   x = 1,395,006,382.50/42,139.64
6. Step 6: Final answer
   x = 33,104.38