Finding the Fourth Proportional to 8,335.59, 11,489.76 and 5,645.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,335.59 : 11,489.76 = 5,645.98 : x
2. Step 2: Convert to fraction form
   8,335.59/11,489.76 = 5,645.98/x
3. Step 3: Cross multiply
   8,335.59x = 11,489.76 × 5,645.98
4. Step 4: Simplify right side
   8,335.59x = 64,870,955.16
5. Step 5: Solve for x
   x = 64,870,955.16/8,335.59
6. Step 6: Final answer
   x = 7,782.41