Finding the Fourth Proportional to 9,621.10, 14,443.80 and 5,182.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,621.10 : 14,443.80 = 5,182.30 : x
2. Step 2: Convert to fraction form
   9,621.10/14,443.80 = 5,182.30/x
3. Step 3: Cross multiply
   9,621.10x = 14,443.80 × 5,182.30
4. Step 4: Simplify right side
   9,621.10x = 74,852,104.74
5. Step 5: Solve for x
   x = 74,852,104.74/9,621.10
6. Step 6: Final answer
   x = 7,779.99