Finding the Fourth Proportional to 56,781.81, 78,307.97 and 35,563.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,781.81 : 78,307.97 = 35,563.05 : x
2. Step 2: Convert to fraction form
   56,781.81/78,307.97 = 35,563.05/x
3. Step 3: Cross multiply
   56,781.81x = 78,307.97 × 35,563.05
4. Step 4: Simplify right side
   56,781.81x = 2,784,870,074.69
5. Step 5: Solve for x
   x = 2,784,870,074.69/56,781.81
6. Step 6: Final answer
   x = 49,045.11