Finding the Fourth Proportional to 84,089.96, 126,028.28 and 83,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   84,089.96 : 126,028.28 = 83,200.10 : x
2. Step 2: Convert to fraction form
   84,089.96/126,028.28 = 83,200.10/x
3. Step 3: Cross multiply
   84,089.96x = 126,028.28 × 83,200.10
4. Step 4: Simplify right side
   84,089.96x = 10,485,565,498.83
5. Step 5: Solve for x
   x = 10,485,565,498.83/84,089.96
6. Step 6: Final answer
   x = 124,694.62