Finding the Fourth Proportional to 13,958.72, 19,262.88 and 7,670.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,958.72 : 19,262.88 = 7,670.96 : x
2. Step 2: Convert to fraction form
   13,958.72/19,262.88 = 7,670.96/x
3. Step 3: Cross multiply
   13,958.72x = 19,262.88 × 7,670.96
4. Step 4: Simplify right side
   13,958.72x = 147,764,781.96
5. Step 5: Solve for x
   x = 147,764,781.96/13,958.72
6. Step 6: Final answer
   x = 10,585.84