Finding the Fourth Proportional to 14,483.31, 19,980.27 and 10,013.28

Step by Step Solution

1. Step 1: Write the proportion equation
   14,483.31 : 19,980.27 = 10,013.28 : x
2. Step 2: Convert to fraction form
   14,483.31/19,980.27 = 10,013.28/x
3. Step 3: Cross multiply
   14,483.31x = 19,980.27 × 10,013.28
4. Step 4: Simplify right side
   14,483.31x = 200,068,037.99
5. Step 5: Solve for x
   x = 200,068,037.99/14,483.31
6. Step 6: Final answer
   x = 13,813.70