Finding the Fourth Proportional to 105,787,715.34, 158,609,131.06 and 53,871,823.61

Step by Step Solution

1. Step 1: Write the proportion equation
   105,787,715.34 : 158,609,131.06 = 53,871,823.61 : x
2. Step 2: Convert to fraction form
   105,787,715.34/158,609,131.06 = 53,871,823.61/x
3. Step 3: Cross multiply
   105,787,715.34x = 158,609,131.06 × 53,871,823.61
4. Step 4: Simplify right side
   105,787,715.34x = 8,544,563,131,399,692
5. Step 5: Solve for x
   x = 8,544,563,131,399,692/105,787,715.34
6. Step 6: Final answer
   x = 80,770,844.74