Finding the Fourth Proportional to 12,356.98, 17,050.77 and 7,051.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,356.98 : 17,050.77 = 7,051.07 : x
2. Step 2: Convert to fraction form
   12,356.98/17,050.77 = 7,051.07/x
3. Step 3: Cross multiply
   12,356.98x = 17,050.77 × 7,051.07
4. Step 4: Simplify right side
   12,356.98x = 120,226,215.45
5. Step 5: Solve for x
   x = 120,226,215.45/12,356.98
6. Step 6: Final answer
   x = 9,729.42