Finding the Fourth Proportional to 73,953.68, 102,044.28 and 42,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   73,953.68 : 102,044.28 = 42,123.20 : x
2. Step 2: Convert to fraction form
   73,953.68/102,044.28 = 42,123.20/x
3. Step 3: Cross multiply
   73,953.68x = 102,044.28 × 42,123.20
4. Step 4: Simplify right side
   73,953.68x = 4,298,431,615.30
5. Step 5: Solve for x
   x = 4,298,431,615.30/73,953.68
6. Step 6: Final answer
   x = 58,123.30