Finding the Fourth Proportional to 14,670.16, 21,993.62 and 5,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,670.16 : 21,993.62 = 5,308.72 : x
2. Step 2: Convert to fraction form
   14,670.16/21,993.62 = 5,308.72/x
3. Step 3: Cross multiply
   14,670.16x = 21,993.62 × 5,308.72
4. Step 4: Simplify right side
   14,670.16x = 116,757,970.37
5. Step 5: Solve for x
   x = 116,757,970.37/14,670.16
6. Step 6: Final answer
   x = 7,958.88