Finding the Fourth Proportional to 5,891.47, 8,820.50 and 5,337.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,891.47 : 8,820.50 = 5,337.18 : x
2. Step 2: Convert to fraction form
   5,891.47/8,820.50 = 5,337.18/x
3. Step 3: Cross multiply
   5,891.47x = 8,820.50 × 5,337.18
4. Step 4: Simplify right side
   5,891.47x = 47,076,569.50
5. Step 5: Solve for x
   x = 47,076,569.50/5,891.47
6. Step 6: Final answer
   x = 7,990.64