Finding the Fourth Proportional to 12,892.04, 19,341.76 and 5,399.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892.04 : 19,341.76 = 5,399.12 : x
2. Step 2: Convert to fraction form
   12,892.04/19,341.76 = 5,399.12/x
3. Step 3: Cross multiply
   12,892.04x = 19,341.76 × 5,399.12
4. Step 4: Simplify right side
   12,892.04x = 104,428,483.25
5. Step 5: Solve for x
   x = 104,428,483.25/12,892.04
6. Step 6: Final answer
   x = 8,100.23