Finding the Fourth Proportional to 142,752.98, 196,996.56 and 79,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,752.98 : 196,996.56 = 79,089.50 : x
2. Step 2: Convert to fraction form
   142,752.98/196,996.56 = 79,089.50/x
3. Step 3: Cross multiply
   142,752.98x = 196,996.56 × 79,089.50
4. Step 4: Simplify right side
   142,752.98x = 15,580,359,432.12
5. Step 5: Solve for x
   x = 15,580,359,432.12/142,752.98
6. Step 6: Final answer
   x = 109,142.10