Finding the Fourth Proportional to 12,748.24, 19,100.76 and 7,807.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.24 : 19,100.76 = 7,807.56 : x
2. Step 2: Convert to fraction form
   12,748.24/19,100.76 = 7,807.56/x
3. Step 3: Cross multiply
   12,748.24x = 19,100.76 × 7,807.56
4. Step 4: Simplify right side
   12,748.24x = 149,130,329.75
5. Step 5: Solve for x
   x = 149,130,329.75/12,748.24
6. Step 6: Final answer
   x = 11,698.11