Finding the Fourth Proportional to 105,823.42, 146,031.72 and 58,077.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,823.42 : 146,031.72 = 58,077.56 : x
2. Step 2: Convert to fraction form
   105,823.42/146,031.72 = 58,077.56/x
3. Step 3: Cross multiply
   105,823.42x = 146,031.72 × 58,077.56
4. Step 4: Simplify right side
   105,823.42x = 8,481,165,980.20
5. Step 5: Solve for x
   x = 8,481,165,980.20/105,823.42
6. Step 6: Final answer
   x = 80,144.51