Finding the Fourth Proportional to 78,810.28, 108,742.34 and 50,141.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,810.28 : 108,742.34 = 50,141.32 : x
2. Step 2: Convert to fraction form
   78,810.28/108,742.34 = 50,141.32/x
3. Step 3: Cross multiply
   78,810.28x = 108,742.34 × 50,141.32
4. Step 4: Simplify right side
   78,810.28x = 5,452,484,467.49
5. Step 5: Solve for x
   x = 5,452,484,467.49/78,810.28
6. Step 6: Final answer
   x = 69,184.94