Finding the Fourth Proportional to 14,670.05, 21,987.72 and 5,305.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,670.05 : 21,987.72 = 5,305.16 : x
2. Step 2: Convert to fraction form
   14,670.05/21,987.72 = 5,305.16/x
3. Step 3: Cross multiply
   14,670.05x = 21,987.72 × 5,305.16
4. Step 4: Simplify right side
   14,670.05x = 116,648,427.60
5. Step 5: Solve for x
   x = 116,648,427.60/14,670.05
6. Step 6: Final answer
   x = 7,951.47