Finding the Fourth Proportional to 11,303.61, 16,949.19 and 8,978.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,303.61 : 16,949.19 = 8,978.52 : x
2. Step 2: Convert to fraction form
   11,303.61/16,949.19 = 8,978.52/x
3. Step 3: Cross multiply
   11,303.61x = 16,949.19 × 8,978.52
4. Step 4: Simplify right side
   11,303.61x = 152,178,641.40
5. Step 5: Solve for x
   x = 152,178,641.40/11,303.61
6. Step 6: Final answer
   x = 13,462.84