Finding the Fourth Proportional to 9,288.15, 13,931.74 and 3,047.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.15 : 13,931.74 = 3,047.34 : x
2. Step 2: Convert to fraction form
   9,288.15/13,931.74 = 3,047.34/x
3. Step 3: Cross multiply
   9,288.15x = 13,931.74 × 3,047.34
4. Step 4: Simplify right side
   9,288.15x = 42,454,748.57
5. Step 5: Solve for x
   x = 42,454,748.57/9,288.15
6. Step 6: Final answer
   x = 4,570.85