Finding the Fourth Proportional to 13,912.56, 19,199.80 and 7,624.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,912.56 : 19,199.80 = 7,624.88 : x
2. Step 2: Convert to fraction form
   13,912.56/19,199.80 = 7,624.88/x
3. Step 3: Cross multiply
   13,912.56x = 19,199.80 × 7,624.88
4. Step 4: Simplify right side
   13,912.56x = 146,396,171.02
5. Step 5: Solve for x
   x = 146,396,171.02/13,912.56
6. Step 6: Final answer
   x = 10,522.59