Finding the Fourth Proportional to 9,940.01, 14,900.29 and 4,100.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.01 : 14,900.29 = 4,100.81 : x
2. Step 2: Convert to fraction form
   9,940.01/14,900.29 = 4,100.81/x
3. Step 3: Cross multiply
   9,940.01x = 14,900.29 × 4,100.81
4. Step 4: Simplify right side
   9,940.01x = 61,103,173.48
5. Step 5: Solve for x
   x = 61,103,173.48/9,940.01
6. Step 6: Final answer
   x = 6,147.20