Finding the Fourth Proportional to 103,091.68, 142,168.56 and 67,270.24

Step by Step Solution

1. Step 1: Write the proportion equation
   103,091.68 : 142,168.56 = 67,270.24 : x
2. Step 2: Convert to fraction form
   103,091.68/142,168.56 = 67,270.24/x
3. Step 3: Cross multiply
   103,091.68x = 142,168.56 × 67,270.24
4. Step 4: Simplify right side
   103,091.68x = 9,563,713,151.65
5. Step 5: Solve for x
   x = 9,563,713,151.65/103,091.68
6. Step 6: Final answer
   x = 92,769.01