Finding the Fourth Proportional to 9,410.08, 12,985.76 and 5,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.08 : 12,985.76 = 5,218.56 : x
2. Step 2: Convert to fraction form
   9,410.08/12,985.76 = 5,218.56/x
3. Step 3: Cross multiply
   9,410.08x = 12,985.76 × 5,218.56
4. Step 4: Simplify right side
   9,410.08x = 67,766,967.71
5. Step 5: Solve for x
   x = 67,766,967.71/9,410.08
6. Step 6: Final answer
   x = 7,201.53