Finding the Fourth Proportional to 28,300.73, 42,451.16 and 9,580.95

Step by Step Solution

1. Step 1: Write the proportion equation
   28,300.73 : 42,451.16 = 9,580.95 : x
2. Step 2: Convert to fraction form
   28,300.73/42,451.16 = 9,580.95/x
3. Step 3: Cross multiply
   28,300.73x = 42,451.16 × 9,580.95
4. Step 4: Simplify right side
   28,300.73x = 406,722,393.50
5. Step 5: Solve for x
   x = 406,722,393.50/28,300.73
6. Step 6: Final answer
   x = 14,371.45