Finding the Fourth Proportional to 108,402.96, 162,393.82 and 79,888.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,402.96 : 162,393.82 = 79,888.12 : x
2. Step 2: Convert to fraction form
   108,402.96/162,393.82 = 79,888.12/x
3. Step 3: Cross multiply
   108,402.96x = 162,393.82 × 79,888.12
4. Step 4: Simplify right side
   108,402.96x = 12,973,336,979.42
5. Step 5: Solve for x
   x = 12,973,336,979.42/108,402.96
6. Step 6: Final answer
   x = 119,676.96