Finding the Fourth Proportional to 12,748.16, 19,119.52 and 5,820.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.16 : 19,119.52 = 5,820.96 : x
2. Step 2: Convert to fraction form
   12,748.16/19,119.52 = 5,820.96/x
3. Step 3: Cross multiply
   12,748.16x = 19,119.52 × 5,820.96
4. Step 4: Simplify right side
   12,748.16x = 111,293,961.14
5. Step 5: Solve for x
   x = 111,293,961.14/12,748.16
6. Step 6: Final answer
   x = 8,730.20