Finding the Fourth Proportional to 9,298.72, 13,931.76 and 4,905.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,298.72 : 13,931.76 = 4,905.76 : x
2. Step 2: Convert to fraction form
   9,298.72/13,931.76 = 4,905.76/x
3. Step 3: Cross multiply
   9,298.72x = 13,931.76 × 4,905.76
4. Step 4: Simplify right side
   9,298.72x = 68,345,870.94
5. Step 5: Solve for x
   x = 68,345,870.94/9,298.72
6. Step 6: Final answer
   x = 7,350.03