Finding the Fourth Proportional to 107,472.72, 161,146.56 and 79,026.68

Step by Step Solution

1. Step 1: Write the proportion equation
   107,472.72 : 161,146.56 = 79,026.68 : x
2. Step 2: Convert to fraction form
   107,472.72/161,146.56 = 79,026.68/x
3. Step 3: Cross multiply
   107,472.72x = 161,146.56 × 79,026.68
4. Step 4: Simplify right side
   107,472.72x = 12,734,877,630.22
5. Step 5: Solve for x
   x = 12,734,877,630.22/107,472.72
6. Step 6: Final answer
   x = 118,494.05