Finding the Fourth Proportional to 11,855.04, 17,784.42 and 7,178.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,855.04 : 17,784.42 = 7,178.46 : x
2. Step 2: Convert to fraction form
   11,855.04/17,784.42 = 7,178.46/x
3. Step 3: Cross multiply
   11,855.04x = 17,784.42 × 7,178.46
4. Step 4: Simplify right side
   11,855.04x = 127,664,747.59
5. Step 5: Solve for x
   x = 127,664,747.59/11,855.04
6. Step 6: Final answer
   x = 10,768.82