Finding the Fourth Proportional to 105,971.47, 146,238.83 and 58,224.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,971.47 : 146,238.83 = 58,224.76 : x
2. Step 2: Convert to fraction form
   105,971.47/146,238.83 = 58,224.76/x
3. Step 3: Cross multiply
   105,971.47x = 146,238.83 × 58,224.76
4. Step 4: Simplify right side
   105,971.47x = 8,514,720,488.31
5. Step 5: Solve for x
   x = 8,514,720,488.31/105,971.47
6. Step 6: Final answer
   x = 80,349.18