Finding the Fourth Proportional to 9,780.01, 14,662.11 and 3,931

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.01 : 14,662.11 = 3,931 : x
2. Step 2: Convert to fraction form
   9,780.01/14,662.11 = 3,931/x
3. Step 3: Cross multiply
   9,780.01x = 14,662.11 × 3,931
4. Step 4: Simplify right side
   9,780.01x = 57,636,754.41
5. Step 5: Solve for x
   x = 57,636,754.41/9,780.01
6. Step 6: Final answer
   x = 5,893.32