Finding the Fourth Proportional to 10,300.08, 14,215.32 and 6,319.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.08 : 14,215.32 = 6,319.80 : x
2. Step 2: Convert to fraction form
   10,300.08/14,215.32 = 6,319.80/x
3. Step 3: Cross multiply
   10,300.08x = 14,215.32 × 6,319.80
4. Step 4: Simplify right side
   10,300.08x = 89,837,979.34
5. Step 5: Solve for x
   x = 89,837,979.34/10,300.08
6. Step 6: Final answer
   x = 8,722.07