Finding the Fourth Proportional to 10,456.32, 14,428.08 and 5,919.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.32 : 14,428.08 = 5,919.36 : x
2. Step 2: Convert to fraction form
   10,456.32/14,428.08 = 5,919.36/x
3. Step 3: Cross multiply
   10,456.32x = 14,428.08 × 5,919.36
4. Step 4: Simplify right side
   10,456.32x = 85,404,999.63
5. Step 5: Solve for x
   x = 85,404,999.63/10,456.32
6. Step 6: Final answer
   x = 8,167.79