Finding the Fourth Proportional to 14,077.40, 21,109.61 and 5,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,077.40 : 21,109.61 = 5,306.72 : x
2. Step 2: Convert to fraction form
   14,077.40/21,109.61 = 5,306.72/x
3. Step 3: Cross multiply
   14,077.40x = 21,109.61 × 5,306.72
4. Step 4: Simplify right side
   14,077.40x = 112,022,697.30
5. Step 5: Solve for x
   x = 112,022,697.30/14,077.40
6. Step 6: Final answer
   x = 7,957.63