Finding the Fourth Proportional to 10,155.49, 15,196.32 and 8,384.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.49 : 15,196.32 = 8,384.02 : x
2. Step 2: Convert to fraction form
   10,155.49/15,196.32 = 8,384.02/x
3. Step 3: Cross multiply
   10,155.49x = 15,196.32 × 8,384.02
4. Step 4: Simplify right side
   10,155.49x = 127,406,212.82
5. Step 5: Solve for x
   x = 127,406,212.82/10,155.49
6. Step 6: Final answer
   x = 12,545.55