Finding the Fourth Proportional to 8,381.47, 12,577.50 and 4,686.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,381.47 : 12,577.50 = 4,686.12 : x
2. Step 2: Convert to fraction form
   8,381.47/12,577.50 = 4,686.12/x
3. Step 3: Cross multiply
   8,381.47x = 12,577.50 × 4,686.12
4. Step 4: Simplify right side
   8,381.47x = 58,939,674.30
5. Step 5: Solve for x
   x = 58,939,674.30/8,381.47
6. Step 6: Final answer
   x = 7,032.14