Finding the Fourth Proportional to 117,138.84, 161,650.89 and 63,422.71

Step by Step Solution

1. Step 1: Write the proportion equation
   117,138.84 : 161,650.89 = 63,422.71 : x
2. Step 2: Convert to fraction form
   117,138.84/161,650.89 = 63,422.71/x
3. Step 3: Cross multiply
   117,138.84x = 161,650.89 × 63,422.71
4. Step 4: Simplify right side
   117,138.84x = 10,252,337,517.71
5. Step 5: Solve for x
   x = 10,252,337,517.71/117,138.84
6. Step 6: Final answer
   x = 87,522.96