Finding the Fourth Proportional to 13,997.87, 19,316.76 and 7,624.53

Step by Step Solution

1. Step 1: Write the proportion equation
   13,997.87 : 19,316.76 = 7,624.53 : x
2. Step 2: Convert to fraction form
   13,997.87/19,316.76 = 7,624.53/x
3. Step 3: Cross multiply
   13,997.87x = 19,316.76 × 7,624.53
4. Step 4: Simplify right side
   13,997.87x = 147,281,119.54
5. Step 5: Solve for x
   x = 147,281,119.54/13,997.87
6. Step 6: Final answer
   x = 10,521.68