Finding the Fourth Proportional to 117,138.83, 161,650.89 and 63,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,138.83 : 161,650.89 = 63,422.72 : x
2. Step 2: Convert to fraction form
   117,138.83/161,650.89 = 63,422.72/x
3. Step 3: Cross multiply
   117,138.83x = 161,650.89 × 63,422.72
4. Step 4: Simplify right side
   117,138.83x = 10,252,339,134.22
5. Step 5: Solve for x
   x = 10,252,339,134.22/117,138.83
6. Step 6: Final answer
   x = 87,522.98