Finding the Fourth Proportional to 9,503.56, 14,256.42 and 2,931.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,503.56 : 14,256.42 = 2,931.40 : x
2. Step 2: Convert to fraction form
   9,503.56/14,256.42 = 2,931.40/x
3. Step 3: Cross multiply
   9,503.56x = 14,256.42 × 2,931.40
4. Step 4: Simplify right side
   9,503.56x = 41,791,269.59
5. Step 5: Solve for x
   x = 41,791,269.59/9,503.56
6. Step 6: Final answer
   x = 4,397.43