Finding the Fourth Proportional to 16,899.89, 23,323.50 and 9,347.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899.89 : 23,323.50 = 9,347.99 : x
2. Step 2: Convert to fraction form
   16,899.89/23,323.50 = 9,347.99/x
3. Step 3: Cross multiply
   16,899.89x = 23,323.50 × 9,347.99
4. Step 4: Simplify right side
   16,899.89x = 218,027,728.15
5. Step 5: Solve for x
   x = 218,027,728.15/16,899.89
6. Step 6: Final answer
   x = 12,901.14