Finding the Fourth Proportional to 88,100.25, 121,679.25 and 58,020.03

Step by Step Solution

1. Step 1: Write the proportion equation
   88,100.25 : 121,679.25 = 58,020.03 : x
2. Step 2: Convert to fraction form
   88,100.25/121,679.25 = 58,020.03/x
3. Step 3: Cross multiply
   88,100.25x = 121,679.25 × 58,020.03
4. Step 4: Simplify right side
   88,100.25x = 7,059,833,735.38
5. Step 5: Solve for x
   x = 7,059,833,735.38/88,100.25
6. Step 6: Final answer
   x = 80,134.09