Finding the Fourth Proportional to 10,934.59, 16,402.86 and 4,693.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,934.59 : 16,402.86 = 4,693.20 : x
2. Step 2: Convert to fraction form
   10,934.59/16,402.86 = 4,693.20/x
3. Step 3: Cross multiply
   10,934.59x = 16,402.86 × 4,693.20
4. Step 4: Simplify right side
   10,934.59x = 76,981,797.07
5. Step 5: Solve for x
   x = 76,981,797.07/10,934.59
6. Step 6: Final answer
   x = 7,040.21