Finding the Fourth Proportional to 21,497.34, 32,071.43 and 20,334.77

Step by Step Solution

1. Step 1: Write the proportion equation
   21,497.34 : 32,071.43 = 20,334.77 : x
2. Step 2: Convert to fraction form
   21,497.34/32,071.43 = 20,334.77/x
3. Step 3: Cross multiply
   21,497.34x = 32,071.43 × 20,334.77
4. Step 4: Simplify right side
   21,497.34x = 652,164,890.59
5. Step 5: Solve for x
   x = 652,164,890.59/21,497.34
6. Step 6: Final answer
   x = 30,337.00