Finding the Fourth Proportional to 9,770.42, 14,661.10 and 3,931.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,770.42 : 14,661.10 = 3,931.12 : x
2. Step 2: Convert to fraction form
   9,770.42/14,661.10 = 3,931.12/x
3. Step 3: Cross multiply
   9,770.42x = 14,661.10 × 3,931.12
4. Step 4: Simplify right side
   9,770.42x = 57,634,543.43
5. Step 5: Solve for x
   x = 57,634,543.43/9,770.42
6. Step 6: Final answer
   x = 5,898.88