Finding the Fourth Proportional to 117,487.89, 162,128.61 and 63,771.53

Step by Step Solution

1. Step 1: Write the proportion equation
   117,487.89 : 162,128.61 = 63,771.53 : x
2. Step 2: Convert to fraction form
   117,487.89/162,128.61 = 63,771.53/x
3. Step 3: Cross multiply
   117,487.89x = 162,128.61 × 63,771.53
4. Step 4: Simplify right side
   117,487.89x = 10,339,188,705.83
5. Step 5: Solve for x
   x = 10,339,188,705.83/117,487.89
6. Step 6: Final answer
   x = 88,002.17