Finding the Fourth Proportional to 65,085.57, 89,818.74 and 38,236.77

Step by Step Solution

1. Step 1: Write the proportion equation
   65,085.57 : 89,818.74 = 38,236.77 : x
2. Step 2: Convert to fraction form
   65,085.57/89,818.74 = 38,236.77/x
3. Step 3: Cross multiply
   65,085.57x = 89,818.74 × 38,236.77
4. Step 4: Simplify right side
   65,085.57x = 3,434,378,503.07
5. Step 5: Solve for x
   x = 3,434,378,503.07/65,085.57
6. Step 6: Final answer
   x = 52,767.13