Finding the Fourth Proportional to 126,978.24, 175,247.82 and 78,595.69

Step by Step Solution

1. Step 1: Write the proportion equation
   126,978.24 : 175,247.82 = 78,595.69 : x
2. Step 2: Convert to fraction form
   126,978.24/175,247.82 = 78,595.69/x
3. Step 3: Cross multiply
   126,978.24x = 175,247.82 × 78,595.69
4. Step 4: Simplify right side
   126,978.24x = 13,773,723,224.37
5. Step 5: Solve for x
   x = 13,773,723,224.37/126,978.24
6. Step 6: Final answer
   x = 108,473.10