Finding the Fourth Proportional to 105,042,819.92, 144,983,277.96 and 61,596,752.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,042,819.92 : 144,983,277.96 = 61,596,752.72 : x
2. Step 2: Convert to fraction form
   105,042,819.92/144,983,277.96 = 61,596,752.72/x
3. Step 3: Cross multiply
   105,042,819.92x = 144,983,277.96 × 61,596,752.72
4. Step 4: Simplify right side
   105,042,819.92x = 8,930,499,121,037,146
5. Step 5: Solve for x
   x = 8,930,499,121,037,146/105,042,819.92
6. Step 6: Final answer
   x = 85,017,701.62