Finding the Fourth Proportional to 9,411.09, 12,985.02 and 5,219.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.09 : 12,985.02 = 5,219.34 : x
2. Step 2: Convert to fraction form
   9,411.09/12,985.02 = 5,219.34/x
3. Step 3: Cross multiply
   9,411.09x = 12,985.02 × 5,219.34
4. Step 4: Simplify right side
   9,411.09x = 67,773,234.29
5. Step 5: Solve for x
   x = 67,773,234.29/9,411.09
6. Step 6: Final answer
   x = 7,201.42