Finding the Fourth Proportional to 16,155.40, 22,296.78 and 10,507

Step by Step Solution

1. Step 1: Write the proportion equation
   16,155.40 : 22,296.78 = 10,507 : x
2. Step 2: Convert to fraction form
   16,155.40/22,296.78 = 10,507/x
3. Step 3: Cross multiply
   16,155.40x = 22,296.78 × 10,507
4. Step 4: Simplify right side
   16,155.40x = 234,272,267.46
5. Step 5: Solve for x
   x = 234,272,267.46/16,155.40
6. Step 6: Final answer
   x = 14,501.17