Finding the Fourth Proportional to 85,073.71, 127,689.51 and 42,983.35

Step by Step Solution

1. Step 1: Write the proportion equation
   85,073.71 : 127,689.51 = 42,983.35 : x
2. Step 2: Convert to fraction form
   85,073.71/127,689.51 = 42,983.35/x
3. Step 3: Cross multiply
   85,073.71x = 127,689.51 × 42,983.35
4. Step 4: Simplify right side
   85,073.71x = 5,488,522,899.66
5. Step 5: Solve for x
   x = 5,488,522,899.66/85,073.71
6. Step 6: Final answer
   x = 64,514.91