Finding the Fourth Proportional to 88,196.16, 121,640.26 and 58,012.44

Step by Step Solution

1. Step 1: Write the proportion equation
   88,196.16 : 121,640.26 = 58,012.44 : x
2. Step 2: Convert to fraction form
   88,196.16/121,640.26 = 58,012.44/x
3. Step 3: Cross multiply
   88,196.16x = 121,640.26 × 58,012.44
4. Step 4: Simplify right side
   88,196.16x = 7,056,648,284.83
5. Step 5: Solve for x
   x = 7,056,648,284.83/88,196.16
6. Step 6: Final answer
   x = 80,010.83