Finding the Fourth Proportional to 83,425.56, 125,139.15 and 21,096.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83,425.56 : 125,139.15 = 21,096.06 : x
2. Step 2: Convert to fraction form
   83,425.56/125,139.15 = 21,096.06/x
3. Step 3: Cross multiply
   83,425.56x = 125,139.15 × 21,096.06
4. Step 4: Simplify right side
   83,425.56x = 2,639,943,016.75
5. Step 5: Solve for x
   x = 2,639,943,016.75/83,425.56
6. Step 6: Final answer
   x = 31,644.29