Finding the Fourth Proportional to 117,155.71, 161,674.59 and 63,440.73

Step by Step Solution

1. Step 1: Write the proportion equation
   117,155.71 : 161,674.59 = 63,440.73 : x
2. Step 2: Convert to fraction form
   117,155.71/161,674.59 = 63,440.73/x
3. Step 3: Cross multiply
   117,155.71x = 161,674.59 × 63,440.73
4. Step 4: Simplify right side
   117,155.71x = 10,256,754,012.05
5. Step 5: Solve for x
   x = 10,256,754,012.05/117,155.71
6. Step 6: Final answer
   x = 87,548.05