Finding the Fourth Proportional to 67,781.17, 93,515.61 and 40,913.47

Step by Step Solution

1. Step 1: Write the proportion equation
   67,781.17 : 93,515.61 = 40,913.47 : x
2. Step 2: Convert to fraction form
   67,781.17/93,515.61 = 40,913.47/x
3. Step 3: Cross multiply
   67,781.17x = 93,515.61 × 40,913.47
4. Step 4: Simplify right side
   67,781.17x = 3,826,048,104.27
5. Step 5: Solve for x
   x = 3,826,048,104.27/67,781.17
6. Step 6: Final answer
   x = 56,447.06