Finding the Fourth Proportional to 12,723.55, 19,081.91 and 5,326.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.55 : 19,081.91 = 5,326.49 : x
2. Step 2: Convert to fraction form
   12,723.55/19,081.91 = 5,326.49/x
3. Step 3: Cross multiply
   12,723.55x = 19,081.91 × 5,326.49
4. Step 4: Simplify right side
   12,723.55x = 101,639,663.82
5. Step 5: Solve for x
   x = 101,639,663.82/12,723.55
6. Step 6: Final answer
   x = 7,988.31