Finding the Fourth Proportional to 12,901.42, 17,804.16 and 7,237.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.42 : 17,804.16 = 7,237.43 : x
2. Step 2: Convert to fraction form
   12,901.42/17,804.16 = 7,237.43/x
3. Step 3: Cross multiply
   12,901.42x = 17,804.16 × 7,237.43
4. Step 4: Simplify right side
   12,901.42x = 128,856,272.69
5. Step 5: Solve for x
   x = 128,856,272.69/12,901.42
6. Step 6: Final answer
   x = 9,987.76