Finding the Fourth Proportional to 12,357.27, 17,051.96 and 7,320.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.27 : 17,051.96 = 7,320.59 : x
2. Step 2: Convert to fraction form
   12,357.27/17,051.96 = 7,320.59/x
3. Step 3: Cross multiply
   12,357.27x = 17,051.96 × 7,320.59
4. Step 4: Simplify right side
   12,357.27x = 124,830,285.99
5. Step 5: Solve for x
   x = 124,830,285.99/12,357.27
6. Step 6: Final answer
   x = 10,101.77