Finding the Fourth Proportional to 114,640.31, 170,913.98 and 111,726.98

Step by Step Solution

1. Step 1: Write the proportion equation
   114,640.31 : 170,913.98 = 111,726.98 : x
2. Step 2: Convert to fraction form
   114,640.31/170,913.98 = 111,726.98/x
3. Step 3: Cross multiply
   114,640.31x = 170,913.98 × 111,726.98
4. Step 4: Simplify right side
   114,640.31x = 19,095,702,890.86
5. Step 5: Solve for x
   x = 19,095,702,890.86/114,640.31
6. Step 6: Final answer
   x = 166,570.58