Finding the Fourth Proportional to 106,456.56, 146,898.78 and 58,707.06

Step by Step Solution

1. Step 1: Write the proportion equation
   106,456.56 : 146,898.78 = 58,707.06 : x
2. Step 2: Convert to fraction form
   106,456.56/146,898.78 = 58,707.06/x
3. Step 3: Cross multiply
   106,456.56x = 146,898.78 × 58,707.06
4. Step 4: Simplify right side
   106,456.56x = 8,623,995,491.39
5. Step 5: Solve for x
   x = 8,623,995,491.39/106,456.56
6. Step 6: Final answer
   x = 81,009.53