Finding the Fourth Proportional to 12,978.88, 19,470.74 and 6,053.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978.88 : 19,470.74 = 6,053.38 : x
2. Step 2: Convert to fraction form
   12,978.88/19,470.74 = 6,053.38/x
3. Step 3: Cross multiply
   12,978.88x = 19,470.74 × 6,053.38
4. Step 4: Simplify right side
   12,978.88x = 117,863,788.10
5. Step 5: Solve for x
   x = 117,863,788.10/12,978.88
6. Step 6: Final answer
   x = 9,081.20