Finding the Fourth Proportional to 160,659,976.10, 221,715,443.70 and 91,043,042.18

Step by Step Solution

1. Step 1: Write the proportion equation
   160,659,976.10 : 221,715,443.70 = 91,043,042.18 : x
2. Step 2: Convert to fraction form
   160,659,976.10/221,715,443.70 = 91,043,042.18/x
3. Step 3: Cross multiply
   160,659,976.10x = 221,715,443.70 × 91,043,042.18
4. Step 4: Simplify right side
   160,659,976.10x = 20,185,648,491,627,936
5. Step 5: Solve for x
   x = 20,185,648,491,627,936/160,659,976.10
6. Step 6: Final answer
   x = 125,642,048.39