Finding the Fourth Proportional to 105,773.58, 158,417.37 and 88,919.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,773.58 : 158,417.37 = 88,919.10 : x
2. Step 2: Convert to fraction form
   105,773.58/158,417.37 = 88,919.10/x
3. Step 3: Cross multiply
   105,773.58x = 158,417.37 × 88,919.10
4. Step 4: Simplify right side
   105,773.58x = 14,086,329,964.77
5. Step 5: Solve for x
   x = 14,086,329,964.77/105,773.58
6. Step 6: Final answer
   x = 133,174.37