Finding the Fourth Proportional to 12,359.87, 17,054.03 and 7,054.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.87 : 17,054.03 = 7,054.55 : x
2. Step 2: Convert to fraction form
   12,359.87/17,054.03 = 7,054.55/x
3. Step 3: Cross multiply
   12,359.87x = 17,054.03 × 7,054.55
4. Step 4: Simplify right side
   12,359.87x = 120,308,472.06
5. Step 5: Solve for x
   x = 120,308,472.06/12,359.87
6. Step 6: Final answer
   x = 9,733.80