Finding the Fourth Proportional to 50,106.65, 69,158.55 and 31,240.13

Step by Step Solution

1. Step 1: Write the proportion equation
   50,106.65 : 69,158.55 = 31,240.13 : x
2. Step 2: Convert to fraction form
   50,106.65/69,158.55 = 31,240.13/x
3. Step 3: Cross multiply
   50,106.65x = 69,158.55 × 31,240.13
4. Step 4: Simplify right side
   50,106.65x = 2,160,521,746.82
5. Step 5: Solve for x
   x = 2,160,521,746.82/50,106.65
6. Step 6: Final answer
   x = 43,118.47