Finding the Fourth Proportional to 107,186.92, 147,968.74 and 71,436.52

Step by Step Solution

1. Step 1: Write the proportion equation
   107,186.92 : 147,968.74 = 71,436.52 : x
2. Step 2: Convert to fraction form
   107,186.92/147,968.74 = 71,436.52/x
3. Step 3: Cross multiply
   107,186.92x = 147,968.74 × 71,436.52
4. Step 4: Simplify right side
   107,186.92x = 10,570,371,854.38
5. Step 5: Solve for x
   x = 10,570,371,854.38/107,186.92
6. Step 6: Final answer
   x = 98,616.25