Finding the Fourth Proportional to 83,139.20, 124,709.52 and 23,975

Step by Step Solution

1. Step 1: Write the proportion equation
   83,139.20 : 124,709.52 = 23,975 : x
2. Step 2: Convert to fraction form
   83,139.20/124,709.52 = 23,975/x
3. Step 3: Cross multiply
   83,139.20x = 124,709.52 × 23,975
4. Step 4: Simplify right side
   83,139.20x = 2,989,910,742
5. Step 5: Solve for x
   x = 2,989,910,742/83,139.20
6. Step 6: Final answer
   x = 35,962.71