Finding the Fourth Proportional to 21,722,426.88, 29,976,426.24 and 12,064,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,722,426.88 : 29,976,426.24 = 12,064,642.56 : x
2. Step 2: Convert to fraction form
   21,722,426.88/29,976,426.24 = 12,064,642.56/x
3. Step 3: Cross multiply
   21,722,426.88x = 29,976,426.24 × 12,064,642.56
4. Step 4: Simplify right side
   21,722,426.88x = 361,654,867,811,804.75
5. Step 5: Solve for x
   x = 361,654,867,811,804.75/21,722,426.88
6. Step 6: Final answer
   x = 16,648,916.34