Finding the Fourth Proportional to 13,256.16, 18,293.55 and 7,591.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,256.16 : 18,293.55 = 7,591.00 : x
2. Step 2: Convert to fraction form
   13,256.16/18,293.55 = 7,591.00/x
3. Step 3: Cross multiply
   13,256.16x = 18,293.55 × 7,591.00
4. Step 4: Simplify right side
   13,256.16x = 138,866,208.63
5. Step 5: Solve for x
   x = 138,866,208.63/13,256.16
6. Step 6: Final answer
   x = 10,475.60