Finding the Fourth Proportional to 142,748.82, 196,999.82 and 79,086.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,748.82 : 196,999.82 = 79,086.61 : x
2. Step 2: Convert to fraction form
   142,748.82/196,999.82 = 79,086.61/x
3. Step 3: Cross multiply
   142,748.82x = 196,999.82 × 79,086.61
4. Step 4: Simplify right side
   142,748.82x = 15,580,047,934.41
5. Step 5: Solve for x
   x = 15,580,047,934.41/142,748.82
6. Step 6: Final answer
   x = 109,143.09