Finding the Fourth Proportional to 13,510.04, 18,643.98 and 7,768.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,510.04 : 18,643.98 = 7,768.36 : x
2. Step 2: Convert to fraction form
   13,510.04/18,643.98 = 7,768.36/x
3. Step 3: Cross multiply
   13,510.04x = 18,643.98 × 7,768.36
4. Step 4: Simplify right side
   13,510.04x = 144,833,148.47
5. Step 5: Solve for x
   x = 144,833,148.47/13,510.04
6. Step 6: Final answer
   x = 10,720.41