Finding the Fourth Proportional to 90,610.80, 124,992.53 and 84,196.14

Step by Step Solution

1. Step 1: Write the proportion equation
   90,610.80 : 124,992.53 = 84,196.14 : x
2. Step 2: Convert to fraction form
   90,610.80/124,992.53 = 84,196.14/x
3. Step 3: Cross multiply
   90,610.80x = 124,992.53 × 84,196.14
4. Step 4: Simplify right side
   90,610.80x = 10,523,888,554.83
5. Step 5: Solve for x
   x = 10,523,888,554.83/90,610.80
6. Step 6: Final answer
   x = 116,143.87