Finding the Fourth Proportional to 13,622.52, 20,314.59 and 13,497.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,622.52 : 20,314.59 = 13,497.98 : x
2. Step 2: Convert to fraction form
   13,622.52/20,314.59 = 13,497.98/x
3. Step 3: Cross multiply
   13,622.52x = 20,314.59 × 13,497.98
4. Step 4: Simplify right side
   13,622.52x = 274,205,777.34
5. Step 5: Solve for x
   x = 274,205,777.34/13,622.52
6. Step 6: Final answer
   x = 20,128.85