Finding the Fourth Proportional to 80,910.45, 111,708.30 and 52,242.93

Step by Step Solution

1. Step 1: Write the proportion equation
   80,910.45 : 111,708.30 = 52,242.93 : x
2. Step 2: Convert to fraction form
   80,910.45/111,708.30 = 52,242.93/x
3. Step 3: Cross multiply
   80,910.45x = 111,708.30 × 52,242.93
4. Step 4: Simplify right side
   80,910.45x = 5,835,968,897.32
5. Step 5: Solve for x
   x = 5,835,968,897.32/80,910.45
6. Step 6: Final answer
   x = 72,128.74