Finding the Fourth Proportional to 28,291.82, 42,444.29 and 8,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,291.82 : 42,444.29 = 8,300.50 : x
2. Step 2: Convert to fraction form
   28,291.82/42,444.29 = 8,300.50/x
3. Step 3: Cross multiply
   28,291.82x = 42,444.29 × 8,300.50
4. Step 4: Simplify right side
   28,291.82x = 352,308,825.22
5. Step 5: Solve for x
   x = 352,308,825.22/28,291.82
6. Step 6: Final answer
   x = 12,452.68