Finding the Fourth Proportional to 13,307.82, 19,956.15 and 4,543.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,307.82 : 19,956.15 = 4,543.26 : x
2. Step 2: Convert to fraction form
   13,307.82/19,956.15 = 4,543.26/x
3. Step 3: Cross multiply
   13,307.82x = 19,956.15 × 4,543.26
4. Step 4: Simplify right side
   13,307.82x = 90,665,978.05
5. Step 5: Solve for x
   x = 90,665,978.05/13,307.82
6. Step 6: Final answer
   x = 6,812.99