Finding the Fourth Proportional to 52,989.44, 73,119.56 and 42,375.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,989.44 : 73,119.56 = 42,375.20 : x
2. Step 2: Convert to fraction form
   52,989.44/73,119.56 = 42,375.20/x
3. Step 3: Cross multiply
   52,989.44x = 73,119.56 × 42,375.20
4. Step 4: Simplify right side
   52,989.44x = 3,098,455,978.91
5. Step 5: Solve for x
   x = 3,098,455,978.91/52,989.44
6. Step 6: Final answer
   x = 58,473.08