Finding the Fourth Proportional to 88,419.60, 132,028.01 and 83,424.74

Step by Step Solution

1. Step 1: Write the proportion equation
   88,419.60 : 132,028.01 = 83,424.74 : x
2. Step 2: Convert to fraction form
   88,419.60/132,028.01 = 83,424.74/x
3. Step 3: Cross multiply
   88,419.60x = 132,028.01 × 83,424.74
4. Step 4: Simplify right side
   88,419.60x = 11,014,401,642.55
5. Step 5: Solve for x
   x = 11,014,401,642.55/88,419.60
6. Step 6: Final answer
   x = 124,569.68