Finding the Fourth Proportional to 9,485.98, 13,090.50 and 5,237.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,485.98 : 13,090.50 = 5,237.08 : x
2. Step 2: Convert to fraction form
   9,485.98/13,090.50 = 5,237.08/x
3. Step 3: Cross multiply
   9,485.98x = 13,090.50 × 5,237.08
4. Step 4: Simplify right side
   9,485.98x = 68,555,963.01
5. Step 5: Solve for x
   x = 68,555,963.01/9,485.98
6. Step 6: Final answer
   x = 7,227.08