Finding the Fourth Proportional to 8,977.68, 12,389.46 and 5,201.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,977.68 : 12,389.46 = 5,201.46 : x
2. Step 2: Convert to fraction form
   8,977.68/12,389.46 = 5,201.46/x
3. Step 3: Cross multiply
   8,977.68x = 12,389.46 × 5,201.46
4. Step 4: Simplify right side
   8,977.68x = 64,443,280.61
5. Step 5: Solve for x
   x = 64,443,280.61/8,977.68
6. Step 6: Final answer
   x = 7,178.17