Finding the Fourth Proportional to 14,188.32, 19,579.86 and 7,902.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,188.32 : 19,579.86 = 7,902.18 : x
2. Step 2: Convert to fraction form
   14,188.32/19,579.86 = 7,902.18/x
3. Step 3: Cross multiply
   14,188.32x = 19,579.86 × 7,902.18
4. Step 4: Simplify right side
   14,188.32x = 154,723,578.09
5. Step 5: Solve for x
   x = 154,723,578.09/14,188.32
6. Step 6: Final answer
   x = 10,905.00