Finding the Fourth Proportional to 107,411.30, 160,922.55 and 91,859.30

Step by Step Solution

1. Step 1: Write the proportion equation
   107,411.30 : 160,922.55 = 91,859.30 : x
2. Step 2: Convert to fraction form
   107,411.30/160,922.55 = 91,859.30/x
3. Step 3: Cross multiply
   107,411.30x = 160,922.55 × 91,859.30
4. Step 4: Simplify right side
   107,411.30x = 14,782,232,797.22
5. Step 5: Solve for x
   x = 14,782,232,797.22/107,411.30
6. Step 6: Final answer
   x = 137,622.70