Finding the Fourth Proportional to 32,762,478.72, 49,143,739.68 and 13,588,087.20

Step by Step Solution

1. Step 1: Write the proportion equation
   32,762,478.72 : 49,143,739.68 = 13,588,087.20 : x
2. Step 2: Convert to fraction form
   32,762,478.72/49,143,739.68 = 13,588,087.20/x
3. Step 3: Cross multiply
   32,762,478.72x = 49,143,739.68 × 13,588,087.20
4. Step 4: Simplify right side
   32,762,478.72x = 667,769,420,105,940
5. Step 5: Solve for x
   x = 667,769,420,105,940/32,762,478.72
6. Step 6: Final answer
   x = 20,382,139.76