Finding the Fourth Proportional to 13,019.10, 19,528.68 and 3,158.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.10 : 19,528.68 = 3,158.34 : x
2. Step 2: Convert to fraction form
   13,019.10/19,528.68 = 3,158.34/x
3. Step 3: Cross multiply
   13,019.10x = 19,528.68 × 3,158.34
4. Step 4: Simplify right side
   13,019.10x = 61,678,211.19
5. Step 5: Solve for x
   x = 61,678,211.19/13,019.10
6. Step 6: Final answer
   x = 4,737.52