Finding the Fourth Proportional to 21,642.46, 32,461.53 and 14,667.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,642.46 : 32,461.53 = 14,667.30 : x
2. Step 2: Convert to fraction form
   21,642.46/32,461.53 = 14,667.30/x
3. Step 3: Cross multiply
   21,642.46x = 32,461.53 × 14,667.30
4. Step 4: Simplify right side
   21,642.46x = 476,122,763.32
5. Step 5: Solve for x
   x = 476,122,763.32/21,642.46
6. Step 6: Final answer
   x = 21,999.48