Finding the Fourth Proportional to 12,355.91, 17,052.38 and 7,051.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,355.91 : 17,052.38 = 7,051.53 : x
2. Step 2: Convert to fraction form
   12,355.91/17,052.38 = 7,051.53/x
3. Step 3: Cross multiply
   12,355.91x = 17,052.38 × 7,051.53
4. Step 4: Simplify right side
   12,355.91x = 120,245,248.62
5. Step 5: Solve for x
   x = 120,245,248.62/12,355.91
6. Step 6: Final answer
   x = 9,731.80