Finding the Fourth Proportional to 116,102.33, 160,227.69 and 87,370.31

Step by Step Solution

1. Step 1: Write the proportion equation
   116,102.33 : 160,227.69 = 87,370.31 : x
2. Step 2: Convert to fraction form
   116,102.33/160,227.69 = 87,370.31/x
3. Step 3: Cross multiply
   116,102.33x = 160,227.69 × 87,370.31
4. Step 4: Simplify right side
   116,102.33x = 13,999,143,018.81
5. Step 5: Solve for x
   x = 13,999,143,018.81/116,102.33
6. Step 6: Final answer
   x = 120,575.90