Finding the Fourth Proportional to 88,085.10, 121,529.16 and 49,317.21

Step by Step Solution

1. Step 1: Write the proportion equation
   88,085.10 : 121,529.16 = 49,317.21 : x
2. Step 2: Convert to fraction form
   88,085.10/121,529.16 = 49,317.21/x
3. Step 3: Cross multiply
   88,085.10x = 121,529.16 × 49,317.21
4. Step 4: Simplify right side
   88,085.10x = 5,993,478,620.49
5. Step 5: Solve for x
   x = 5,993,478,620.49/88,085.10
6. Step 6: Final answer
   x = 68,041.92