Finding the Fourth Proportional to 8,809.02, 12,155.82 and 5,272.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.02 : 12,155.82 = 5,272.26 : x
2. Step 2: Convert to fraction form
   8,809.02/12,155.82 = 5,272.26/x
3. Step 3: Cross multiply
   8,809.02x = 12,155.82 × 5,272.26
4. Step 4: Simplify right side
   8,809.02x = 64,088,643.55
5. Step 5: Solve for x
   x = 64,088,643.55/8,809.02
6. Step 6: Final answer
   x = 7,275.34