Finding the Fourth Proportional to 9,410.25, 12,985.94 and 5,377.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.25 : 12,985.94 = 5,377.26 : x
2. Step 2: Convert to fraction form
   9,410.25/12,985.94 = 5,377.26/x
3. Step 3: Cross multiply
   9,410.25x = 12,985.94 × 5,377.26
4. Step 4: Simplify right side
   9,410.25x = 69,828,775.72
5. Step 5: Solve for x
   x = 69,828,775.72/9,410.25
6. Step 6: Final answer
   x = 7,420.50