Finding the Fourth Proportional to 16,632,369.60, 24,967,216.80 and 12,862,564.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,632,369.60 : 24,967,216.80 = 12,862,564.80 : x
2. Step 2: Convert to fraction form
   16,632,369.60/24,967,216.80 = 12,862,564.80/x
3. Step 3: Cross multiply
   16,632,369.60x = 24,967,216.80 × 12,862,564.80
4. Step 4: Simplify right side
   16,632,369.60x = 321,142,443,965,648.69
5. Step 5: Solve for x
   x = 321,142,443,965,648.69/16,632,369.60
6. Step 6: Final answer
   x = 19,308,279.68