Finding the Fourth Proportional to 12,961.56, 19,423.92 and 5,924.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,961.56 : 19,423.92 = 5,924.28 : x
2. Step 2: Convert to fraction form
   12,961.56/19,423.92 = 5,924.28/x
3. Step 3: Cross multiply
   12,961.56x = 19,423.92 × 5,924.28
4. Step 4: Simplify right side
   12,961.56x = 115,072,740.78
5. Step 5: Solve for x
   x = 115,072,740.78/12,961.56
6. Step 6: Final answer
   x = 8,878.00