Finding the Fourth Proportional to 13,011.47, 17,955.83 and 7,422.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,011.47 : 17,955.83 = 7,422.47 : x
2. Step 2: Convert to fraction form
   13,011.47/17,955.83 = 7,422.47/x
3. Step 3: Cross multiply
   13,011.47x = 17,955.83 × 7,422.47
4. Step 4: Simplify right side
   13,011.47x = 133,276,563.86
5. Step 5: Solve for x
   x = 133,276,563.86/13,011.47
6. Step 6: Final answer
   x = 10,243.01