Finding the Fourth Proportional to 78,861.81, 108,831.16 and 43,052.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,861.81 : 108,831.16 = 43,052.09 : x
2. Step 2: Convert to fraction form
   78,861.81/108,831.16 = 43,052.09/x
3. Step 3: Cross multiply
   78,861.81x = 108,831.16 × 43,052.09
4. Step 4: Simplify right side
   78,861.81x = 4,685,408,895.12
5. Step 5: Solve for x
   x = 4,685,408,895.12/78,861.81
6. Step 6: Final answer
   x = 59,412.90