Finding the Fourth Proportional to 88,680.30, 122,269.92 and 55,087.98

Step by Step Solution

1. Step 1: Write the proportion equation
   88,680.30 : 122,269.92 = 55,087.98 : x
2. Step 2: Convert to fraction form
   88,680.30/122,269.92 = 55,087.98/x
3. Step 3: Cross multiply
   88,680.30x = 122,269.92 × 55,087.98
4. Step 4: Simplify right side
   88,680.30x = 6,735,602,907.56
5. Step 5: Solve for x
   x = 6,735,602,907.56/88,680.30
6. Step 6: Final answer
   x = 75,953.77