Finding the Fourth Proportional to 22,429,268.48, 30,952,418.04 and 12,115,991.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429,268.48 : 30,952,418.04 = 12,115,991.72 : x
2. Step 2: Convert to fraction form
   22,429,268.48/30,952,418.04 = 12,115,991.72/x
3. Step 3: Cross multiply
   22,429,268.48x = 30,952,418.04 × 12,115,991.72
4. Step 4: Simplify right side
   22,429,268.48x = 375,019,240,686,618.62
5. Step 5: Solve for x
   x = 375,019,240,686,618.62/22,429,268.48
6. Step 6: Final answer
   x = 16,720,083.45