Finding the Fourth Proportional to 13,323.77, 18,386.14 and 7,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,323.77 : 18,386.14 = 7,654.50 : x
2. Step 2: Convert to fraction form
   13,323.77/18,386.14 = 7,654.50/x
3. Step 3: Cross multiply
   13,323.77x = 18,386.14 × 7,654.50
4. Step 4: Simplify right side
   13,323.77x = 140,736,703.85
5. Step 5: Solve for x
   x = 140,736,703.85/13,323.77
6. Step 6: Final answer
   x = 10,562.83