Finding the Fourth Proportional to 9,290.90, 12,821.40 and 5,041.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.90 : 12,821.40 = 5,041.98 : x
2. Step 2: Convert to fraction form
   9,290.90/12,821.40 = 5,041.98/x
3. Step 3: Cross multiply
   9,290.90x = 12,821.40 × 5,041.98
4. Step 4: Simplify right side
   9,290.90x = 64,645,242.37
5. Step 5: Solve for x
   x = 64,645,242.37/9,290.90
6. Step 6: Final answer
   x = 6,957.91