Finding the Fourth Proportional to 70,772.62, 105,830.81 and 54,796.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70,772.62 : 105,830.81 = 54,796.56 : x
2. Step 2: Convert to fraction form
   70,772.62/105,830.81 = 54,796.56/x
3. Step 3: Cross multiply
   70,772.62x = 105,830.81 × 54,796.56
4. Step 4: Simplify right side
   70,772.62x = 5,799,164,330.01
5. Step 5: Solve for x
   x = 5,799,164,330.01/70,772.62
6. Step 6: Final answer
   x = 81,940.79