Finding the Fourth Proportional to 104,573.71, 144,311.61 and 56,826.96

Step by Step Solution

1. Step 1: Write the proportion equation
   104,573.71 : 144,311.61 = 56,826.96 : x
2. Step 2: Convert to fraction form
   104,573.71/144,311.61 = 56,826.96/x
3. Step 3: Cross multiply
   104,573.71x = 144,311.61 × 56,826.96
4. Step 4: Simplify right side
   104,573.71x = 8,200,790,089.01
5. Step 5: Solve for x
   x = 8,200,790,089.01/104,573.71
6. Step 6: Final answer
   x = 78,421.15