Finding the Fourth Proportional to 9,619.75, 13,275.46 and 5,312.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,619.75 : 13,275.46 = 5,312.82 : x
2. Step 2: Convert to fraction form
   9,619.75/13,275.46 = 5,312.82/x
3. Step 3: Cross multiply
   9,619.75x = 13,275.46 × 5,312.82
4. Step 4: Simplify right side
   9,619.75x = 70,530,129.40
5. Step 5: Solve for x
   x = 70,530,129.40/9,619.75
6. Step 6: Final answer
   x = 7,331.80