Finding the Fourth Proportional to 13,312.37, 19,972.72 and 3,952.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,312.37 : 19,972.72 = 3,952.43 : x
2. Step 2: Convert to fraction form
   13,312.37/19,972.72 = 3,952.43/x
3. Step 3: Cross multiply
   13,312.37x = 19,972.72 × 3,952.43
4. Step 4: Simplify right side
   13,312.37x = 78,940,777.71
5. Step 5: Solve for x
   x = 78,940,777.71/13,312.37
6. Step 6: Final answer
   x = 5,929.88