Finding the Fourth Proportional to 13,780.29, 19,016.67 and 7,492.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.29 : 19,016.67 = 7,492.67 : x
2. Step 2: Convert to fraction form
   13,780.29/19,016.67 = 7,492.67/x
3. Step 3: Cross multiply
   13,780.29x = 19,016.67 × 7,492.67
4. Step 4: Simplify right side
   13,780.29x = 142,485,632.81
5. Step 5: Solve for x
   x = 142,485,632.81/13,780.29
6. Step 6: Final answer
   x = 10,339.81