Finding the Fourth Proportional to 106,042.42, 146,338.61 and 58,296.57

Step by Step Solution

1. Step 1: Write the proportion equation
   106,042.42 : 146,338.61 = 58,296.57 : x
2. Step 2: Convert to fraction form
   106,042.42/146,338.61 = 58,296.57/x
3. Step 3: Cross multiply
   106,042.42x = 146,338.61 × 58,296.57
4. Step 4: Simplify right side
   106,042.42x = 8,531,039,021.57
5. Step 5: Solve for x
   x = 8,531,039,021.57/106,042.42
6. Step 6: Final answer
   x = 80,449.31