Finding the Fourth Proportional to 9,672.89, 14,483.88 and 7,788.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,672.89 : 14,483.88 = 7,788.69 : x
2. Step 2: Convert to fraction form
   9,672.89/14,483.88 = 7,788.69/x
3. Step 3: Cross multiply
   9,672.89x = 14,483.88 × 7,788.69
4. Step 4: Simplify right side
   9,672.89x = 112,810,451.32
5. Step 5: Solve for x
   x = 112,810,451.32/9,672.89
6. Step 6: Final answer
   x = 11,662.54