Finding the Fourth Proportional to 14,442.50, 19,930.71 and 7,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,442.50 : 19,930.71 = 7,818.50 : x
2. Step 2: Convert to fraction form
   14,442.50/19,930.71 = 7,818.50/x
3. Step 3: Cross multiply
   14,442.50x = 19,930.71 × 7,818.50
4. Step 4: Simplify right side
   14,442.50x = 155,828,256.14
5. Step 5: Solve for x
   x = 155,828,256.14/14,442.50
6. Step 6: Final answer
   x = 10,789.56