Finding the Fourth Proportional to 73,854.72, 101,921.76 and 42,028.20

Step by Step Solution

1. Step 1: Write the proportion equation
   73,854.72 : 101,921.76 = 42,028.20 : x
2. Step 2: Convert to fraction form
   73,854.72/101,921.76 = 42,028.20/x
3. Step 3: Cross multiply
   73,854.72x = 101,921.76 × 42,028.20
4. Step 4: Simplify right side
   73,854.72x = 4,283,588,113.63
5. Step 5: Solve for x
   x = 4,283,588,113.63/73,854.72
6. Step 6: Final answer
   x = 58,000.19