Finding the Fourth Proportional to 85,910.32, 118,564.20 and 50,111.92

Step by Step Solution

1. Step 1: Write the proportion equation
   85,910.32 : 118,564.20 = 50,111.92 : x
2. Step 2: Convert to fraction form
   85,910.32/118,564.20 = 50,111.92/x
3. Step 3: Cross multiply
   85,910.32x = 118,564.20 × 50,111.92
4. Step 4: Simplify right side
   85,910.32x = 5,941,479,705.26
5. Step 5: Solve for x
   x = 5,941,479,705.26/85,910.32
6. Step 6: Final answer
   x = 69,159.09