Finding the Fourth Proportional to 77,112.25, 106,441.71 and 52,993.09

Step by Step Solution

1. Step 1: Write the proportion equation
   77,112.25 : 106,441.71 = 52,993.09 : x
2. Step 2: Convert to fraction form
   77,112.25/106,441.71 = 52,993.09/x
3. Step 3: Cross multiply
   77,112.25x = 106,441.71 × 52,993.09
4. Step 4: Simplify right side
   77,112.25x = 5,640,675,117.78
5. Step 5: Solve for x
   x = 5,640,675,117.78/77,112.25
6. Step 6: Final answer
   x = 73,148.89