Finding the Fourth Proportional to 28,403, 39,196.34 and 16,300.26

Step by Step Solution

1. Step 1: Write the proportion equation
   28,403 : 39,196.34 = 16,300.26 : x
2. Step 2: Convert to fraction form
   28,403/39,196.34 = 16,300.26/x
3. Step 3: Cross multiply
   28,403x = 39,196.34 × 16,300.26
4. Step 4: Simplify right side
   28,403x = 638,910,533.05
5. Step 5: Solve for x
   x = 638,910,533.05/28,403
6. Step 6: Final answer
   x = 22,494.47