Finding the Fourth Proportional to 12,359.56, 17,056.20 and 7,054.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.56 : 17,056.20 = 7,054.26 : x
2. Step 2: Convert to fraction form
   12,359.56/17,056.20 = 7,054.26/x
3. Step 3: Cross multiply
   12,359.56x = 17,056.20 × 7,054.26
4. Step 4: Simplify right side
   12,359.56x = 120,318,869.41
5. Step 5: Solve for x
   x = 120,318,869.41/12,359.56
6. Step 6: Final answer
   x = 9,734.88