Finding the Fourth Proportional to 21,621,371.32, 29,869,901.10 and 14,196,648.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,621,371.32 : 29,869,901.10 = 14,196,648.46 : x
2. Step 2: Convert to fraction form
   21,621,371.32/29,869,901.10 = 14,196,648.46/x
3. Step 3: Cross multiply
   21,621,371.32x = 29,869,901.10 × 14,196,648.46
4. Step 4: Simplify right side
   21,621,371.32x = 424,052,485,451,667.38
5. Step 5: Solve for x
   x = 424,052,485,451,667.38/21,621,371.32
6. Step 6: Final answer
   x = 19,612,654.50