Finding the Fourth Proportional to 9,912.37, 14,867.10 and 2,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,912.37 : 14,867.10 = 2,890.50 : x
2. Step 2: Convert to fraction form
   9,912.37/14,867.10 = 2,890.50/x
3. Step 3: Cross multiply
   9,912.37x = 14,867.10 × 2,890.50
4. Step 4: Simplify right side
   9,912.37x = 42,973,263.76
5. Step 5: Solve for x
   x = 42,973,263.76/9,912.37
6. Step 6: Final answer
   x = 4,335.32