Finding the Fourth Proportional to 105,902.94, 146,146.06 and 58,157.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,902.94 : 146,146.06 = 58,157.09 : x
2. Step 2: Convert to fraction form
   105,902.94/146,146.06 = 58,157.09/x
3. Step 3: Cross multiply
   105,902.94x = 146,146.06 × 58,157.09
4. Step 4: Simplify right side
   105,902.94x = 8,499,428,543.05
5. Step 5: Solve for x
   x = 8,499,428,543.05/105,902.94
6. Step 6: Final answer
   x = 80,256.78