Finding the Fourth Proportional to 83,118.32, 124,689.80 and 30,523.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,118.32 : 124,689.80 = 30,523.72 : x
2. Step 2: Convert to fraction form
   83,118.32/124,689.80 = 30,523.72/x
3. Step 3: Cross multiply
   83,118.32x = 124,689.80 × 30,523.72
4. Step 4: Simplify right side
   83,118.32x = 3,805,996,542.06
5. Step 5: Solve for x
   x = 3,805,996,542.06/83,118.32
6. Step 6: Final answer
   x = 45,790.10