Finding the Fourth Proportional to 219,076.50, 328,614.78 and 52,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   219,076.50 : 328,614.78 = 52,864.50 : x
2. Step 2: Convert to fraction form
   219,076.50/328,614.78 = 52,864.50/x
3. Step 3: Cross multiply
   219,076.50x = 328,614.78 × 52,864.50
4. Step 4: Simplify right side
   219,076.50x = 17,372,056,037.31
5. Step 5: Solve for x
   x = 17,372,056,037.31/219,076.50
6. Step 6: Final answer
   x = 79,296.76