Finding the Fourth Proportional to 14,336.16, 19,754.73 and 10,978.98

Step by Step Solution

1. Step 1: Write the proportion equation
   14,336.16 : 19,754.73 = 10,978.98 : x
2. Step 2: Convert to fraction form
   14,336.16/19,754.73 = 10,978.98/x
3. Step 3: Cross multiply
   14,336.16x = 19,754.73 × 10,978.98
4. Step 4: Simplify right side
   14,336.16x = 216,886,785.58
5. Step 5: Solve for x
   x = 216,886,785.58/14,336.16
6. Step 6: Final answer
   x = 15,128.65