Finding the Fourth Proportional to 105,781.02, 145,981.89 and 58,036.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,781.02 : 145,981.89 = 58,036.38 : x
2. Step 2: Convert to fraction form
   105,781.02/145,981.89 = 58,036.38/x
3. Step 3: Cross multiply
   105,781.02x = 145,981.89 × 58,036.38
4. Step 4: Simplify right side
   105,781.02x = 8,472,260,441.16
5. Step 5: Solve for x
   x = 8,472,260,441.16/105,781.02
6. Step 6: Final answer
   x = 80,092.44