Finding the Fourth Proportional to 9,050.78, 13,564.83 and 4,890.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.78 : 13,564.83 = 4,890.62 : x
2. Step 2: Convert to fraction form
   9,050.78/13,564.83 = 4,890.62/x
3. Step 3: Cross multiply
   9,050.78x = 13,564.83 × 4,890.62
4. Step 4: Simplify right side
   9,050.78x = 66,340,428.89
5. Step 5: Solve for x
   x = 66,340,428.89/9,050.78
6. Step 6: Final answer
   x = 7,329.80