Finding the Fourth Proportional to 110,868.05, 152,952.60 and 81,865.91

Step by Step Solution

1. Step 1: Write the proportion equation
   110,868.05 : 152,952.60 = 81,865.91 : x
2. Step 2: Convert to fraction form
   110,868.05/152,952.60 = 81,865.91/x
3. Step 3: Cross multiply
   110,868.05x = 152,952.60 × 81,865.91
4. Step 4: Simplify right side
   110,868.05x = 12,521,603,785.87
5. Step 5: Solve for x
   x = 12,521,603,785.87/110,868.05
6. Step 6: Final answer
   x = 112,941.50