Finding the Fourth Proportional to 9,803.59, 13,515.71 and 6,654.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.59 : 13,515.71 = 6,654.31 : x
2. Step 2: Convert to fraction form
   9,803.59/13,515.71 = 6,654.31/x
3. Step 3: Cross multiply
   9,803.59x = 13,515.71 × 6,654.31
4. Step 4: Simplify right side
   9,803.59x = 89,937,690.94
5. Step 5: Solve for x
   x = 89,937,690.94/9,803.59
6. Step 6: Final answer
   x = 9,173.95