Finding the Fourth Proportional to 105,112.04, 157,717.27 and 45,940.03

Step by Step Solution

1. Step 1: Write the proportion equation
   105,112.04 : 157,717.27 = 45,940.03 : x
2. Step 2: Convert to fraction form
   105,112.04/157,717.27 = 45,940.03/x
3. Step 3: Cross multiply
   105,112.04x = 157,717.27 × 45,940.03
4. Step 4: Simplify right side
   105,112.04x = 7,245,536,115.32
5. Step 5: Solve for x
   x = 7,245,536,115.32/105,112.04
6. Step 6: Final answer
   x = 68,931.55