Finding the Fourth Proportional to 5,681.20, 8,501.52 and 3,926.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,681.20 : 8,501.52 = 3,926.56 : x
2. Step 2: Convert to fraction form
   5,681.20/8,501.52 = 3,926.56/x
3. Step 3: Cross multiply
   5,681.20x = 8,501.52 × 3,926.56
4. Step 4: Simplify right side
   5,681.20x = 33,381,728.37
5. Step 5: Solve for x
   x = 33,381,728.37/5,681.20
6. Step 6: Final answer
   x = 5,875.82