Finding the Fourth Proportional to 12,820.25, 19,238.98 and 4,500.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,820.25 : 19,238.98 = 4,500.29 : x
2. Step 2: Convert to fraction form
   12,820.25/19,238.98 = 4,500.29/x
3. Step 3: Cross multiply
   12,820.25x = 19,238.98 × 4,500.29
4. Step 4: Simplify right side
   12,820.25x = 86,581,026.15
5. Step 5: Solve for x
   x = 86,581,026.15/12,820.25
6. Step 6: Final answer
   x = 6,753.46