Finding the Fourth Proportional to 88,618.20, 122,250.90 and 59,947.89

Step by Step Solution

1. Step 1: Write the proportion equation
   88,618.20 : 122,250.90 = 59,947.89 : x
2. Step 2: Convert to fraction form
   88,618.20/122,250.90 = 59,947.89/x
3. Step 3: Cross multiply
   88,618.20x = 122,250.90 × 59,947.89
4. Step 4: Simplify right side
   88,618.20x = 7,328,683,959.63
5. Step 5: Solve for x
   x = 7,328,683,959.63/88,618.20
6. Step 6: Final answer
   x = 82,699.54