Finding the Fourth Proportional to 12,356.12, 17,051.73 and 7,051.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,356.12 : 17,051.73 = 7,051.43 : x
2. Step 2: Convert to fraction form
   12,356.12/17,051.73 = 7,051.43/x
3. Step 3: Cross multiply
   12,356.12x = 17,051.73 × 7,051.43
4. Step 4: Simplify right side
   12,356.12x = 120,239,080.47
5. Step 5: Solve for x
   x = 120,239,080.47/12,356.12
6. Step 6: Final answer
   x = 9,731.14