Finding the Fourth Proportional to 16,405.56, 24,612.24 and 5,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,405.56 : 24,612.24 = 5,312.25 : x
2. Step 2: Convert to fraction form
   16,405.56/24,612.24 = 5,312.25/x
3. Step 3: Cross multiply
   16,405.56x = 24,612.24 × 5,312.25
4. Step 4: Simplify right side
   16,405.56x = 130,746,371.94
5. Step 5: Solve for x
   x = 130,746,371.94/16,405.56
6. Step 6: Final answer
   x = 7,969.64