Finding the Fourth Proportional to 10,498.25, 14,499.60 and 7,135.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.25 : 14,499.60 = 7,135.40 : x
2. Step 2: Convert to fraction form
   10,498.25/14,499.60 = 7,135.40/x
3. Step 3: Cross multiply
   10,498.25x = 14,499.60 × 7,135.40
4. Step 4: Simplify right side
   10,498.25x = 103,460,445.84
5. Step 5: Solve for x
   x = 103,460,445.84/10,498.25
6. Step 6: Final answer
   x = 9,855.02