Finding the Fourth Proportional to 54,871.79, 82,221.83 and 42,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,871.79 : 82,221.83 = 42,422.50 : x
2. Step 2: Convert to fraction form
   54,871.79/82,221.83 = 42,422.50/x
3. Step 3: Cross multiply
   54,871.79x = 82,221.83 × 42,422.50
4. Step 4: Simplify right side
   54,871.79x = 3,488,054,959.95
5. Step 5: Solve for x
   x = 3,488,054,959.95/54,871.79
6. Step 6: Final answer
   x = 63,567.36