Finding the Fourth Proportional to 11,871.01, 17,810.70 and 7,423.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,871.01 : 17,810.70 = 7,423.53 : x
2. Step 2: Convert to fraction form
   11,871.01/17,810.70 = 7,423.53/x
3. Step 3: Cross multiply
   11,871.01x = 17,810.70 × 7,423.53
4. Step 4: Simplify right side
   11,871.01x = 132,218,265.77
5. Step 5: Solve for x
   x = 132,218,265.77/11,871.01
6. Step 6: Final answer
   x = 11,137.91