Finding the Fourth Proportional to 117,003.18, 161,463.78 and 63,288.03

Step by Step Solution

1. Step 1: Write the proportion equation
   117,003.18 : 161,463.78 = 63,288.03 : x
2. Step 2: Convert to fraction form
   117,003.18/161,463.78 = 63,288.03/x
3. Step 3: Cross multiply
   117,003.18x = 161,463.78 × 63,288.03
4. Step 4: Simplify right side
   117,003.18x = 10,218,724,552.55
5. Step 5: Solve for x
   x = 10,218,724,552.55/117,003.18
6. Step 6: Final answer
   x = 87,337.15