Finding the Fourth Proportional to 120,123.22, 165,774.72 and 79,767.40

Step by Step Solution

1. Step 1: Write the proportion equation
   120,123.22 : 165,774.72 = 79,767.40 : x
2. Step 2: Convert to fraction form
   120,123.22/165,774.72 = 79,767.40/x
3. Step 3: Cross multiply
   120,123.22x = 165,774.72 × 79,767.40
4. Step 4: Simplify right side
   120,123.22x = 13,223,418,400.13
5. Step 5: Solve for x
   x = 13,223,418,400.13/120,123.22
6. Step 6: Final answer
   x = 110,082.12