Finding the Fourth Proportional to 43,339.72, 65,009.10 and 13,756.76

Step by Step Solution

1. Step 1: Write the proportion equation
   43,339.72 : 65,009.10 = 13,756.76 : x
2. Step 2: Convert to fraction form
   43,339.72/65,009.10 = 13,756.76/x
3. Step 3: Cross multiply
   43,339.72x = 65,009.10 × 13,756.76
4. Step 4: Simplify right side
   43,339.72x = 894,314,586.52
5. Step 5: Solve for x
   x = 894,314,586.52/43,339.72
6. Step 6: Final answer
   x = 20,634.99