Finding the Fourth Proportional to 105,901.54, 146,145.14 and 58,155.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,901.54 : 146,145.14 = 58,155.88 : x
2. Step 2: Convert to fraction form
   105,901.54/146,145.14 = 58,155.88/x
3. Step 3: Cross multiply
   105,901.54x = 146,145.14 × 58,155.88
4. Step 4: Simplify right side
   105,901.54x = 8,499,199,224.42
5. Step 5: Solve for x
   x = 8,499,199,224.42/105,901.54
6. Step 6: Final answer
   x = 80,255.67