Finding the Fourth Proportional to 117,139.60, 161,650.74 and 63,424.18

Step by Step Solution

1. Step 1: Write the proportion equation
   117,139.60 : 161,650.74 = 63,424.18 : x
2. Step 2: Convert to fraction form
   117,139.60/161,650.74 = 63,424.18/x
3. Step 3: Cross multiply
   117,139.60x = 161,650.74 × 63,424.18
4. Step 4: Simplify right side
   117,139.60x = 10,252,565,630.89
5. Step 5: Solve for x
   x = 10,252,565,630.89/117,139.60
6. Step 6: Final answer
   x = 87,524.34