Finding the Fourth Proportional to 14,412, 19,888.56 and 7,788

Step by Step Solution

1. Step 1: Write the proportion equation
   14,412 : 19,888.56 = 7,788 : x
2. Step 2: Convert to fraction form
   14,412/19,888.56 = 7,788/x
3. Step 3: Cross multiply
   14,412x = 19,888.56 × 7,788
4. Step 4: Simplify right side
   14,412x = 154,892,105.28
5. Step 5: Solve for x
   x = 154,892,105.28/14,412
6. Step 6: Final answer
   x = 10,747.44