Finding the Fourth Proportional to 10,458.18, 14,430.39 and 5,920.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,458.18 : 14,430.39 = 5,920.83 : x
2. Step 2: Convert to fraction form
   10,458.18/14,430.39 = 5,920.83/x
3. Step 3: Cross multiply
   10,458.18x = 14,430.39 × 5,920.83
4. Step 4: Simplify right side
   10,458.18x = 85,439,886.02
5. Step 5: Solve for x
   x = 85,439,886.02/10,458.18
6. Step 6: Final answer
   x = 8,169.67