Finding the Fourth Proportional to 8,061.84, 12,090.47 and 3,130.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.84 : 12,090.47 = 3,130.43 : x
2. Step 2: Convert to fraction form
   8,061.84/12,090.47 = 3,130.43/x
3. Step 3: Cross multiply
   8,061.84x = 12,090.47 × 3,130.43
4. Step 4: Simplify right side
   8,061.84x = 37,848,293.90
5. Step 5: Solve for x
   x = 37,848,293.90/8,061.84
6. Step 6: Final answer
   x = 4,694.75