Finding the Fourth Proportional to 9,402.50, 14,105.16 and 2,828.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402.50 : 14,105.16 = 2,828.00 : x
2. Step 2: Convert to fraction form
   9,402.50/14,105.16 = 2,828.00/x
3. Step 3: Cross multiply
   9,402.50x = 14,105.16 × 2,828.00
4. Step 4: Simplify right side
   9,402.50x = 39,889,321.95
5. Step 5: Solve for x
   x = 39,889,321.95/9,402.50
6. Step 6: Final answer
   x = 4,242.42