Finding the Fourth Proportional to 10,557.06, 15,837.99 and 5,624.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,557.06 : 15,837.99 = 5,624.10 : x
2. Step 2: Convert to fraction form
   10,557.06/15,837.99 = 5,624.10/x
3. Step 3: Cross multiply
   10,557.06x = 15,837.99 × 5,624.10
4. Step 4: Simplify right side
   10,557.06x = 89,074,439.56
5. Step 5: Solve for x
   x = 89,074,439.56/10,557.06
6. Step 6: Final answer
   x = 8,437.43