Finding the Fourth Proportional to 13,018.92, 19,528.32 and 3,158.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.92 : 19,528.32 = 3,158.16 : x
2. Step 2: Convert to fraction form
   13,018.92/19,528.32 = 3,158.16/x
3. Step 3: Cross multiply
   13,018.92x = 19,528.32 × 3,158.16
4. Step 4: Simplify right side
   13,018.92x = 61,673,559.09
5. Step 5: Solve for x
   x = 61,673,559.09/13,018.92
6. Step 6: Final answer
   x = 4,737.23