Finding the Fourth Proportional to 4,789.94, 7,178.72 and 4,666.91

Step by Step Solution

1. Step 1: Write the proportion equation
   4,789.94 : 7,178.72 = 4,666.91 : x
2. Step 2: Convert to fraction form
   4,789.94/7,178.72 = 4,666.91/x
3. Step 3: Cross multiply
   4,789.94x = 7,178.72 × 4,666.91
4. Step 4: Simplify right side
   4,789.94x = 33,502,380.93
5. Step 5: Solve for x
   x = 33,502,380.93/4,789.94
6. Step 6: Final answer
   x = 6,994.33