Finding the Fourth Proportional to 113,552.01, 170,398.49 and 77,116.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113,552.01 : 170,398.49 = 77,116.59 : x
2. Step 2: Convert to fraction form
   113,552.01/170,398.49 = 77,116.59/x
3. Step 3: Cross multiply
   113,552.01x = 170,398.49 × 77,116.59
4. Step 4: Simplify right side
   113,552.01x = 13,140,550,104.37
5. Step 5: Solve for x
   x = 13,140,550,104.37/113,552.01
6. Step 6: Final answer
   x = 115,722.74