Finding the Fourth Proportional to 13,334.16, 18,403.83 and 7,672.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,334.16 : 18,403.83 = 7,672.89 : x
2. Step 2: Convert to fraction form
   13,334.16/18,403.83 = 7,672.89/x
3. Step 3: Cross multiply
   13,334.16x = 18,403.83 × 7,672.89
4. Step 4: Simplify right side
   13,334.16x = 141,210,563.17
5. Step 5: Solve for x
   x = 141,210,563.17/13,334.16
6. Step 6: Final answer
   x = 10,590.14