Finding the Fourth Proportional to 155,978.03, 215,276.14 and 88,014.27

Step by Step Solution

1. Step 1: Write the proportion equation
   155,978.03 : 215,276.14 = 88,014.27 : x
2. Step 2: Convert to fraction form
   155,978.03/215,276.14 = 88,014.27/x
3. Step 3: Cross multiply
   155,978.03x = 215,276.14 × 88,014.27
4. Step 4: Simplify right side
   155,978.03x = 18,947,371,613.25
5. Step 5: Solve for x
   x = 18,947,371,613.25/155,978.03
6. Step 6: Final answer
   x = 121,474.62