Finding the Fourth Proportional to 105,042,791.92, 144,983,239.32 and 61,596,724.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,042,791.92 : 144,983,239.32 = 61,596,724.72 : x
2. Step 2: Convert to fraction form
   105,042,791.92/144,983,239.32 = 61,596,724.72/x
3. Step 3: Cross multiply
   105,042,791.92x = 144,983,239.32 × 61,596,724.72
4. Step 4: Simplify right side
   105,042,791.92x = 8,930,492,681,407,919
5. Step 5: Solve for x
   x = 8,930,492,681,407,919/105,042,791.92
6. Step 6: Final answer
   x = 85,017,662.98