Finding the Fourth Proportional to 105,158.86, 145,150.28 and 73,338.01

Step by Step Solution

1. Step 1: Write the proportion equation
   105,158.86 : 145,150.28 = 73,338.01 : x
2. Step 2: Convert to fraction form
   105,158.86/145,150.28 = 73,338.01/x
3. Step 3: Cross multiply
   105,158.86x = 145,150.28 × 73,338.01
4. Step 4: Simplify right side
   105,158.86x = 10,645,032,231.59
5. Step 5: Solve for x
   x = 10,645,032,231.59/105,158.86
6. Step 6: Final answer
   x = 101,228.11