Finding the Fourth Proportional to 13,404.87, 18,498.51 and 7,355.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.87 : 18,498.51 = 7,355.16 : x
2. Step 2: Convert to fraction form
   13,404.87/18,498.51 = 7,355.16/x
3. Step 3: Cross multiply
   13,404.87x = 18,498.51 × 7,355.16
4. Step 4: Simplify right side
   13,404.87x = 136,059,500.81
5. Step 5: Solve for x
   x = 136,059,500.81/13,404.87
6. Step 6: Final answer
   x = 10,150.01