Finding the Fourth Proportional to 9,870.84, 14,810.85 and 4,323.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.84 : 14,810.85 = 4,323.47 : x
2. Step 2: Convert to fraction form
   9,870.84/14,810.85 = 4,323.47/x
3. Step 3: Cross multiply
   9,870.84x = 14,810.85 × 4,323.47
4. Step 4: Simplify right side
   9,870.84x = 64,034,191.60
5. Step 5: Solve for x
   x = 64,034,191.60/9,870.84
6. Step 6: Final answer
   x = 6,487.21