Finding the Fourth Proportional to 8,045.19, 12,081.69 and 4,778.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,045.19 : 12,081.69 = 4,778.82 : x
2. Step 2: Convert to fraction form
   8,045.19/12,081.69 = 4,778.82/x
3. Step 3: Cross multiply
   8,045.19x = 12,081.69 × 4,778.82
4. Step 4: Simplify right side
   8,045.19x = 57,736,221.81
5. Step 5: Solve for x
   x = 57,736,221.81/8,045.19
6. Step 6: Final answer
   x = 7,176.49