Finding the Fourth Proportional to 11,373.37, 17,031.56 and 7,200.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,373.37 : 17,031.56 = 7,200.79 : x
2. Step 2: Convert to fraction form
   11,373.37/17,031.56 = 7,200.79/x
3. Step 3: Cross multiply
   11,373.37x = 17,031.56 × 7,200.79
4. Step 4: Simplify right side
   11,373.37x = 122,640,601.77
5. Step 5: Solve for x
   x = 122,640,601.77/11,373.37
6. Step 6: Final answer
   x = 10,783.14