Finding the Fourth Proportional to 107,372.27, 148,215.06 and 71,549.21

Step by Step Solution

1. Step 1: Write the proportion equation
   107,372.27 : 148,215.06 = 71,549.21 : x
2. Step 2: Convert to fraction form
   107,372.27/148,215.06 = 71,549.21/x
3. Step 3: Cross multiply
   107,372.27x = 148,215.06 × 71,549.21
4. Step 4: Simplify right side
   107,372.27x = 10,604,669,712.03
5. Step 5: Solve for x
   x = 10,604,669,712.03/107,372.27
6. Step 6: Final answer
   x = 98,765.45