Finding the Fourth Proportional to 107,128.64, 160,711.43 and 43,983.14

Step by Step Solution

1. Step 1: Write the proportion equation
   107,128.64 : 160,711.43 = 43,983.14 : x
2. Step 2: Convert to fraction form
   107,128.64/160,711.43 = 43,983.14/x
3. Step 3: Cross multiply
   107,128.64x = 160,711.43 × 43,983.14
4. Step 4: Simplify right side
   107,128.64x = 7,068,592,301.82
5. Step 5: Solve for x
   x = 7,068,592,301.82/107,128.64
6. Step 6: Final answer
   x = 65,982.28