Finding the Fourth Proportional to 9,763.83, 13,479.89 and 6,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,763.83 : 13,479.89 = 6,412.50 : x
2. Step 2: Convert to fraction form
   9,763.83/13,479.89 = 6,412.50/x
3. Step 3: Cross multiply
   9,763.83x = 13,479.89 × 6,412.50
4. Step 4: Simplify right side
   9,763.83x = 86,439,762.56
5. Step 5: Solve for x
   x = 86,439,762.56/9,763.83
6. Step 6: Final answer
   x = 8,853.06