Finding the Fourth Proportional to 88,111.82, 121,426.71 and 86,492.54

Step by Step Solution

1. Step 1: Write the proportion equation
   88,111.82 : 121,426.71 = 86,492.54 : x
2. Step 2: Convert to fraction form
   88,111.82/121,426.71 = 86,492.54/x
3. Step 3: Cross multiply
   88,111.82x = 121,426.71 × 86,492.54
4. Step 4: Simplify right side
   88,111.82x = 10,502,504,571.74
5. Step 5: Solve for x
   x = 10,502,504,571.74/88,111.82
6. Step 6: Final answer
   x = 119,195.18