Finding the Fourth Proportional to 109,622.18, 151,291.37 and 91,192.73

Step by Step Solution

1. Step 1: Write the proportion equation
   109,622.18 : 151,291.37 = 91,192.73 : x
2. Step 2: Convert to fraction form
   109,622.18/151,291.37 = 91,192.73/x
3. Step 3: Cross multiply
   109,622.18x = 151,291.37 × 91,192.73
4. Step 4: Simplify right side
   109,622.18x = 13,796,671,843.32
5. Step 5: Solve for x
   x = 13,796,671,843.32/109,622.18
6. Step 6: Final answer
   x = 125,856.58