Finding the Fourth Proportional to 12,607.02, 18,907.49 and 5,583.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.02 : 18,907.49 = 5,583.15 : x
2. Step 2: Convert to fraction form
   12,607.02/18,907.49 = 5,583.15/x
3. Step 3: Cross multiply
   12,607.02x = 18,907.49 × 5,583.15
4. Step 4: Simplify right side
   12,607.02x = 105,563,366.75
5. Step 5: Solve for x
   x = 105,563,366.75/12,607.02
6. Step 6: Final answer
   x = 8,373.38