Finding the Fourth Proportional to 105,301.92, 157,929.63 and 30,405.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,301.92 : 157,929.63 = 30,405.76 : x
2. Step 2: Convert to fraction form
   105,301.92/157,929.63 = 30,405.76/x
3. Step 3: Cross multiply
   105,301.92x = 157,929.63 × 30,405.76
4. Step 4: Simplify right side
   105,301.92x = 4,801,970,426.67
5. Step 5: Solve for x
   x = 4,801,970,426.67/105,301.92
6. Step 6: Final answer
   x = 45,601.93