Finding the Fourth Proportional to 155,985.03, 215,259.39 and 88,016.43

Step by Step Solution

1. Step 1: Write the proportion equation
   155,985.03 : 215,259.39 = 88,016.43 : x
2. Step 2: Convert to fraction form
   155,985.03/215,259.39 = 88,016.43/x
3. Step 3: Cross multiply
   155,985.03x = 215,259.39 × 88,016.43
4. Step 4: Simplify right side
   155,985.03x = 18,946,363,031.78
5. Step 5: Solve for x
   x = 18,946,363,031.78/155,985.03
6. Step 6: Final answer
   x = 121,462.70