Finding the Fourth Proportional to 8,062.41, 12,090.50 and 3,131.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,062.41 : 12,090.50 = 3,131.40 : x
2. Step 2: Convert to fraction form
   8,062.41/12,090.50 = 3,131.40/x
3. Step 3: Cross multiply
   8,062.41x = 12,090.50 × 3,131.40
4. Step 4: Simplify right side
   8,062.41x = 37,860,158.10
5. Step 5: Solve for x
   x = 37,860,158.10/8,062.41
6. Step 6: Final answer
   x = 4,695.89