Finding the Fourth Proportional to 43,300.65, 64,952.78 and 13,717.83

Step by Step Solution

1. Step 1: Write the proportion equation
   43,300.65 : 64,952.78 = 13,717.83 : x
2. Step 2: Convert to fraction form
   43,300.65/64,952.78 = 13,717.83/x
3. Step 3: Cross multiply
   43,300.65x = 64,952.78 × 13,717.83
4. Step 4: Simplify right side
   43,300.65x = 891,011,125.48
5. Step 5: Solve for x
   x = 891,011,125.48/43,300.65
6. Step 6: Final answer
   x = 20,577.32