Finding the Fourth Proportional to 79,590, 109,831.88 and 43,780

Step by Step Solution

1. Step 1: Write the proportion equation
   79,590 : 109,831.88 = 43,780 : x
2. Step 2: Convert to fraction form
   79,590/109,831.88 = 43,780/x
3. Step 3: Cross multiply
   79,590x = 109,831.88 × 43,780
4. Step 4: Simplify right side
   79,590x = 4,808,439,706.40
5. Step 5: Solve for x
   x = 4,808,439,706.40/79,590
6. Step 6: Final answer
   x = 60,415.12