Finding the Fourth Proportional to 12,928.83, 17,842.86 and 7,624.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,928.83 : 17,842.86 = 7,624.68 : x
2. Step 2: Convert to fraction form
   12,928.83/17,842.86 = 7,624.68/x
3. Step 3: Cross multiply
   12,928.83x = 17,842.86 × 7,624.68
4. Step 4: Simplify right side
   12,928.83x = 136,046,097.78
5. Step 5: Solve for x
   x = 136,046,097.78/12,928.83
6. Step 6: Final answer
   x = 10,522.69