Finding the Fourth Proportional to 107,570.66, 148,291.89 and 71,211.18

Step by Step Solution

1. Step 1: Write the proportion equation
   107,570.66 : 148,291.89 = 71,211.18 : x
2. Step 2: Convert to fraction form
   107,570.66/148,291.89 = 71,211.18/x
3. Step 3: Cross multiply
   107,570.66x = 148,291.89 × 71,211.18
4. Step 4: Simplify right side
   107,570.66x = 10,560,040,471.33
5. Step 5: Solve for x
   x = 10,560,040,471.33/107,570.66
6. Step 6: Final answer
   x = 98,168.41