Finding the Fourth Proportional to 28,046.00, 42,059.86 and 9,321.00

Step by Step Solution

1. Step 1: Write the proportion equation
   28,046.00 : 42,059.86 = 9,321.00 : x
2. Step 2: Convert to fraction form
   28,046.00/42,059.86 = 9,321.00/x
3. Step 3: Cross multiply
   28,046.00x = 42,059.86 × 9,321.00
4. Step 4: Simplify right side
   28,046.00x = 392,040,010.62
5. Step 5: Solve for x
   x = 392,040,010.62/28,046.00
6. Step 6: Final answer
   x = 13,978.47