Finding the Fourth Proportional to 107,471.72, 161,145.06 and 79,025.68

Step by Step Solution

1. Step 1: Write the proportion equation
   107,471.72 : 161,145.06 = 79,025.68 : x
2. Step 2: Convert to fraction form
   107,471.72/161,145.06 = 79,025.68/x
3. Step 3: Cross multiply
   107,471.72x = 161,145.06 × 79,025.68
4. Step 4: Simplify right side
   107,471.72x = 12,734,597,945.14
5. Step 5: Solve for x
   x = 12,734,597,945.14/107,471.72
6. Step 6: Final answer
   x = 118,492.55