Finding the Fourth Proportional to 21,667.71, 32,504.29 and 7,438.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,667.71 : 32,504.29 = 7,438.96 : x
2. Step 2: Convert to fraction form
   21,667.71/32,504.29 = 7,438.96/x
3. Step 3: Cross multiply
   21,667.71x = 32,504.29 × 7,438.96
4. Step 4: Simplify right side
   21,667.71x = 241,798,113.14
5. Step 5: Solve for x
   x = 241,798,113.14/21,667.71
6. Step 6: Final answer
   x = 11,159.38