Finding the Fourth Proportional to 28,087.02, 42,116.40 and 9,360.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,087.02 : 42,116.40 = 9,360.42 : x
2. Step 2: Convert to fraction form
   28,087.02/42,116.40 = 9,360.42/x
3. Step 3: Cross multiply
   28,087.02x = 42,116.40 × 9,360.42
4. Step 4: Simplify right side
   28,087.02x = 394,227,192.89
5. Step 5: Solve for x
   x = 394,227,192.89/28,087.02
6. Step 6: Final answer
   x = 14,035.92