Finding the Fourth Proportional to 105,787,713.69, 158,609,128.59 and 53,871,821.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,787,713.69 : 158,609,128.59 = 53,871,821.96 : x
2. Step 2: Convert to fraction form
   105,787,713.69/158,609,128.59 = 53,871,821.96/x
3. Step 3: Cross multiply
   105,787,713.69x = 158,609,128.59 × 53,871,821.96
4. Step 4: Simplify right side
   105,787,713.69x = 8,544,562,735,838,180
5. Step 5: Solve for x
   x = 8,544,562,735,838,180/105,787,713.69
6. Step 6: Final answer
   x = 80,770,842.26