Finding the Fourth Proportional to 28,052.82, 42,070.59 and 9,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,052.82 : 42,070.59 = 9,580.50 : x
2. Step 2: Convert to fraction form
   28,052.82/42,070.59 = 9,580.50/x
3. Step 3: Cross multiply
   28,052.82x = 42,070.59 × 9,580.50
4. Step 4: Simplify right side
   28,052.82x = 403,057,287.50
5. Step 5: Solve for x
   x = 403,057,287.50/28,052.82
6. Step 6: Final answer
   x = 14,367.80