Finding the Fourth Proportional to 13,404.60, 18,496.98 and 7,434.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.60 : 18,496.98 = 7,434.76 : x
2. Step 2: Convert to fraction form
   13,404.60/18,496.98 = 7,434.76/x
3. Step 3: Cross multiply
   13,404.60x = 18,496.98 × 7,434.76
4. Step 4: Simplify right side
   13,404.60x = 137,520,607.02
5. Step 5: Solve for x
   x = 137,520,607.02/13,404.60
6. Step 6: Final answer
   x = 10,259.21