Finding the Fourth Proportional to 105,310.56, 157,942.56 and 30,414.45

Step by Step Solution

1. Step 1: Write the proportion equation
   105,310.56 : 157,942.56 = 30,414.45 : x
2. Step 2: Convert to fraction form
   105,310.56/157,942.56 = 30,414.45/x
3. Step 3: Cross multiply
   105,310.56x = 157,942.56 × 30,414.45
4. Step 4: Simplify right side
   105,310.56x = 4,803,736,093.99
5. Step 5: Solve for x
   x = 4,803,736,093.99/105,310.56
6. Step 6: Final answer
   x = 45,614.95