Finding the Fourth Proportional to 8,928.51, 12,321.74 and 5,100.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,928.51 : 12,321.74 = 5,100.48 : x
2. Step 2: Convert to fraction form
   8,928.51/12,321.74 = 5,100.48/x
3. Step 3: Cross multiply
   8,928.51x = 12,321.74 × 5,100.48
4. Step 4: Simplify right side
   8,928.51x = 62,846,816.59
5. Step 5: Solve for x
   x = 62,846,816.59/8,928.51
6. Step 6: Final answer
   x = 7,038.89