Finding the Fourth Proportional to 110,868.23, 152,952.86 and 81,866.09

Step by Step Solution

1. Step 1: Write the proportion equation
   110,868.23 : 152,952.86 = 81,866.09 : x
2. Step 2: Convert to fraction form
   110,868.23/152,952.86 = 81,866.09/x
3. Step 3: Cross multiply
   110,868.23x = 152,952.86 × 81,866.09
4. Step 4: Simplify right side
   110,868.23x = 12,521,652,575.57
5. Step 5: Solve for x
   x = 12,521,652,575.57/110,868.23
6. Step 6: Final answer
   x = 112,941.75