Finding the Fourth Proportional to 14,019.39, 19,346.74 and 7,731.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,019.39 : 19,346.74 = 7,731.76 : x
2. Step 2: Convert to fraction form
   14,019.39/19,346.74 = 7,731.76/x
3. Step 3: Cross multiply
   14,019.39x = 19,346.74 × 7,731.76
4. Step 4: Simplify right side
   14,019.39x = 149,584,350.46
5. Step 5: Solve for x
   x = 149,584,350.46/14,019.39
6. Step 6: Final answer
   x = 10,669.82