Finding the Fourth Proportional to 12,358.72, 17,053.74 and 7,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,358.72 : 17,053.74 = 7,052.50 : x
2. Step 2: Convert to fraction form
   12,358.72/17,053.74 = 7,052.50/x
3. Step 3: Cross multiply
   12,358.72x = 17,053.74 × 7,052.50
4. Step 4: Simplify right side
   12,358.72x = 120,271,501.35
5. Step 5: Solve for x
   x = 120,271,501.35/12,358.72
6. Step 6: Final answer
   x = 9,731.71