Finding the Fourth Proportional to 13,298.46, 18,355.59 and 7,710.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298.46 : 18,355.59 = 7,710.54 : x
2. Step 2: Convert to fraction form
   13,298.46/18,355.59 = 7,710.54/x
3. Step 3: Cross multiply
   13,298.46x = 18,355.59 × 7,710.54
4. Step 4: Simplify right side
   13,298.46x = 141,531,510.92
5. Step 5: Solve for x
   x = 141,531,510.92/13,298.46
6. Step 6: Final answer
   x = 10,642.70