Finding the Fourth Proportional to 13,404.94, 18,499.39 and 7,437.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.94 : 18,499.39 = 7,437.76 : x
2. Step 2: Convert to fraction form
   13,404.94/18,499.39 = 7,437.76/x
3. Step 3: Cross multiply
   13,404.94x = 18,499.39 × 7,437.76
4. Step 4: Simplify right side
   13,404.94x = 137,594,135.88
5. Step 5: Solve for x
   x = 137,594,135.88/13,404.94
6. Step 6: Final answer
   x = 10,264.43