Finding the Fourth Proportional to 103,104.56, 142,352.82 and 79,188.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,104.56 : 142,352.82 = 79,188.50 : x
2. Step 2: Convert to fraction form
   103,104.56/142,352.82 = 79,188.50/x
3. Step 3: Cross multiply
   103,104.56x = 142,352.82 × 79,188.50
4. Step 4: Simplify right side
   103,104.56x = 11,272,706,286.57
5. Step 5: Solve for x
   x = 11,272,706,286.57/103,104.56
6. Step 6: Final answer
   x = 109,332.76