Finding the Fourth Proportional to 13,019.32, 17,950.98 and 10,783.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.32 : 17,950.98 = 10,783.72 : x
2. Step 2: Convert to fraction form
   13,019.32/17,950.98 = 10,783.72/x
3. Step 3: Cross multiply
   13,019.32x = 17,950.98 × 10,783.72
4. Step 4: Simplify right side
   13,019.32x = 193,578,342.05
5. Step 5: Solve for x
   x = 193,578,342.05/13,019.32
6. Step 6: Final answer
   x = 14,868.54