Finding the Fourth Proportional to 9,816.84, 13,547.35 and 5,340.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,816.84 : 13,547.35 = 5,340.61 : x
2. Step 2: Convert to fraction form
   9,816.84/13,547.35 = 5,340.61/x
3. Step 3: Cross multiply
   9,816.84x = 13,547.35 × 5,340.61
4. Step 4: Simplify right side
   9,816.84x = 72,351,045.15
5. Step 5: Solve for x
   x = 72,351,045.15/9,816.84
6. Step 6: Final answer
   x = 7,370.10