Finding the Fourth Proportional to 13,155.18, 19,736.82 and 4,607.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.18 : 19,736.82 = 4,607.49 : x
2. Step 2: Convert to fraction form
   13,155.18/19,736.82 = 4,607.49/x
3. Step 3: Cross multiply
   13,155.18x = 19,736.82 × 4,607.49
4. Step 4: Simplify right side
   13,155.18x = 90,937,200.78
5. Step 5: Solve for x
   x = 90,937,200.78/13,155.18
6. Step 6: Final answer
   x = 6,912.65