Finding the Fourth Proportional to 9,810.57, 14,726.39 and 3,971.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.57 : 14,726.39 = 3,971.01 : x
2. Step 2: Convert to fraction form
   9,810.57/14,726.39 = 3,971.01/x
3. Step 3: Cross multiply
   9,810.57x = 14,726.39 × 3,971.01
4. Step 4: Simplify right side
   9,810.57x = 58,478,622.10
5. Step 5: Solve for x
   x = 58,478,622.10/9,810.57
6. Step 6: Final answer
   x = 5,960.78