Finding the Fourth Proportional to 156,627.98, 216,146.81 and 85,008.00

Step by Step Solution

1. Step 1: Write the proportion equation
   156,627.98 : 216,146.81 = 85,008.00 : x
2. Step 2: Convert to fraction form
   156,627.98/216,146.81 = 85,008.00/x
3. Step 3: Cross multiply
   156,627.98x = 216,146.81 × 85,008.00
4. Step 4: Simplify right side
   156,627.98x = 18,374,206,943.75
5. Step 5: Solve for x
   x = 18,374,206,943.75/156,627.98
6. Step 6: Final answer
   x = 117,311.14