Finding the Fourth Proportional to 99,492.03, 137,276.78 and 83,424.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,492.03 : 137,276.78 = 83,424.33 : x
2. Step 2: Convert to fraction form
   99,492.03/137,276.78 = 83,424.33/x
3. Step 3: Cross multiply
   99,492.03x = 137,276.78 × 83,424.33
4. Step 4: Simplify right side
   99,492.03x = 11,452,222,978.94
5. Step 5: Solve for x
   x = 11,452,222,978.94/99,492.03
6. Step 6: Final answer
   x = 115,106.94