Finding the Fourth Proportional to 21,817,796.72, 30,108,754.36 and 12,028,588

Step by Step Solution

1. Step 1: Write the proportion equation
   21,817,796.72 : 30,108,754.36 = 12,028,588 : x
2. Step 2: Convert to fraction form
   21,817,796.72/30,108,754.36 = 12,028,588/x
3. Step 3: Cross multiply
   21,817,796.72x = 30,108,754.36 × 12,028,588
4. Step 4: Simplify right side
   21,817,796.72x = 362,165,801,389,643.69
5. Step 5: Solve for x
   x = 362,165,801,389,643.69/21,817,796.72
6. Step 6: Final answer
   x = 16,599,558.88