Finding the Fourth Proportional to 104,826.05, 144,640.72 and 61,819.03

Step by Step Solution

1. Step 1: Write the proportion equation
   104,826.05 : 144,640.72 = 61,819.03 : x
2. Step 2: Convert to fraction form
   104,826.05/144,640.72 = 61,819.03/x
3. Step 3: Cross multiply
   104,826.05x = 144,640.72 × 61,819.03
4. Step 4: Simplify right side
   104,826.05x = 8,941,549,266.98
5. Step 5: Solve for x
   x = 8,941,549,266.98/104,826.05
6. Step 6: Final answer
   x = 85,298.92