Finding the Fourth Proportional to 24,019.55, 33,120.01 and 15,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   24,019.55 : 33,120.01 = 15,510.50 : x
2. Step 2: Convert to fraction form
   24,019.55/33,120.01 = 15,510.50/x
3. Step 3: Cross multiply
   24,019.55x = 33,120.01 × 15,510.50
4. Step 4: Simplify right side
   24,019.55x = 513,707,749.50
5. Step 5: Solve for x
   x = 513,707,749.50/24,019.55
6. Step 6: Final answer
   x = 21,387.07