Finding the Fourth Proportional to 5,909.30, 8,817.86 and 5,385.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,909.30 : 8,817.86 = 5,385.34 : x
2. Step 2: Convert to fraction form
   5,909.30/8,817.86 = 5,385.34/x
3. Step 3: Cross multiply
   5,909.30x = 8,817.86 × 5,385.34
4. Step 4: Simplify right side
   5,909.30x = 47,487,149.06
5. Step 5: Solve for x
   x = 47,487,149.06/5,909.30
6. Step 6: Final answer
   x = 8,036.00