Finding the Fourth Proportional to 13,404.84, 18,497.09 and 7,435.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.84 : 18,497.09 = 7,435.05 : x
2. Step 2: Convert to fraction form
   13,404.84/18,497.09 = 7,435.05/x
3. Step 3: Cross multiply
   13,404.84x = 18,497.09 × 7,435.05
4. Step 4: Simplify right side
   13,404.84x = 137,526,751.83
5. Step 5: Solve for x
   x = 137,526,751.83/13,404.84
6. Step 6: Final answer
   x = 10,259.48