Finding the Fourth Proportional to 88,106.75, 121,688.25 and 58,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,106.75 : 121,688.25 = 58,026.50 : x
2. Step 2: Convert to fraction form
   88,106.75/121,688.25 = 58,026.50/x
3. Step 3: Cross multiply
   88,106.75x = 121,688.25 × 58,026.50
4. Step 4: Simplify right side
   88,106.75x = 7,061,143,238.63
5. Step 5: Solve for x
   x = 7,061,143,238.63/88,106.75
6. Step 6: Final answer
   x = 80,143.05