Finding the Fourth Proportional to 113,400.69, 170,139.27 and 50,212.19

Step by Step Solution

1. Step 1: Write the proportion equation
   113,400.69 : 170,139.27 = 50,212.19 : x
2. Step 2: Convert to fraction form
   113,400.69/170,139.27 = 50,212.19/x
3. Step 3: Cross multiply
   113,400.69x = 170,139.27 × 50,212.19
4. Step 4: Simplify right side
   113,400.69x = 8,543,064,501.00
5. Step 5: Solve for x
   x = 8,543,064,501.00/113,400.69
6. Step 6: Final answer
   x = 75,335.21