Finding the Fourth Proportional to 12,949.68, 19,423.56 and 7,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949.68 : 19,423.56 = 7,385.52 : x
2. Step 2: Convert to fraction form
   12,949.68/19,423.56 = 7,385.52/x
3. Step 3: Cross multiply
   12,949.68x = 19,423.56 × 7,385.52
4. Step 4: Simplify right side
   12,949.68x = 143,453,090.85
5. Step 5: Solve for x
   x = 143,453,090.85/12,949.68
6. Step 6: Final answer
   x = 11,077.73