Finding the Fourth Proportional to 107,016.48, 147,707.28 and 71,208

Step by Step Solution

1. Step 1: Write the proportion equation
   107,016.48 : 147,707.28 = 71,208 : x
2. Step 2: Convert to fraction form
   107,016.48/147,707.28 = 71,208/x
3. Step 3: Cross multiply
   107,016.48x = 147,707.28 × 71,208
4. Step 4: Simplify right side
   107,016.48x = 10,517,939,994.24
5. Step 5: Solve for x
   x = 10,517,939,994.24/107,016.48
6. Step 6: Final answer
   x = 98,283.37