Finding the Fourth Proportional to 12,861.32, 19,293.12 and 3,501.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.32 : 19,293.12 = 3,501.36 : x
2. Step 2: Convert to fraction form
   12,861.32/19,293.12 = 3,501.36/x
3. Step 3: Cross multiply
   12,861.32x = 19,293.12 × 3,501.36
4. Step 4: Simplify right side
   12,861.32x = 67,552,158.64
5. Step 5: Solve for x
   x = 67,552,158.64/12,861.32
6. Step 6: Final answer
   x = 5,252.35