Finding the Fourth Proportional to 83,422.61, 125,132.86 and 20,243.25

Step by Step Solution

1. Step 1: Write the proportion equation
   83,422.61 : 125,132.86 = 20,243.25 : x
2. Step 2: Convert to fraction form
   83,422.61/125,132.86 = 20,243.25/x
3. Step 3: Cross multiply
   83,422.61x = 125,132.86 × 20,243.25
4. Step 4: Simplify right side
   83,422.61x = 2,533,095,736.56
5. Step 5: Solve for x
   x = 2,533,095,736.56/83,422.61
6. Step 6: Final answer
   x = 30,364.62