Finding the Fourth Proportional to 12,498.56, 17,246.72 and 7,783.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.56 : 17,246.72 = 7,783.36 : x
2. Step 2: Convert to fraction form
   12,498.56/17,246.72 = 7,783.36/x
3. Step 3: Cross multiply
   12,498.56x = 17,246.72 × 7,783.36
4. Step 4: Simplify right side
   12,498.56x = 134,237,430.58
5. Step 5: Solve for x
   x = 134,237,430.58/12,498.56
6. Step 6: Final answer
   x = 10,740.23