Finding the Fourth Proportional to 28,452.06, 42,641.37 and 13,630.14

Step by Step Solution

1. Step 1: Write the proportion equation
   28,452.06 : 42,641.37 = 13,630.14 : x
2. Step 2: Convert to fraction form
   28,452.06/42,641.37 = 13,630.14/x
3. Step 3: Cross multiply
   28,452.06x = 42,641.37 × 13,630.14
4. Step 4: Simplify right side
   28,452.06x = 581,207,842.89
5. Step 5: Solve for x
   x = 581,207,842.89/28,452.06
6. Step 6: Final answer
   x = 20,427.62