Finding the Fourth Proportional to 6,513.59, 8,988.73 and 3,529.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,513.59 : 8,988.73 = 3,529.50 : x
2. Step 2: Convert to fraction form
   6,513.59/8,988.73 = 3,529.50/x
3. Step 3: Cross multiply
   6,513.59x = 8,988.73 × 3,529.50
4. Step 4: Simplify right side
   6,513.59x = 31,725,722.54
5. Step 5: Solve for x
   x = 31,725,722.54/6,513.59
6. Step 6: Final answer
   x = 4,870.70