Finding the Fourth Proportional to 112,976.88, 155,906.67 and 61,293.18

Step by Step Solution

1. Step 1: Write the proportion equation
   112,976.88 : 155,906.67 = 61,293.18 : x
2. Step 2: Convert to fraction form
   112,976.88/155,906.67 = 61,293.18/x
3. Step 3: Cross multiply
   112,976.88x = 155,906.67 × 61,293.18
4. Step 4: Simplify right side
   112,976.88x = 9,556,015,587.51
5. Step 5: Solve for x
   x = 9,556,015,587.51/112,976.88
6. Step 6: Final answer
   x = 84,583.82