Finding the Fourth Proportional to 74,086.99, 102,239.01 and 42,256.42

Step by Step Solution

1. Step 1: Write the proportion equation
   74,086.99 : 102,239.01 = 42,256.42 : x
2. Step 2: Convert to fraction form
   74,086.99/102,239.01 = 42,256.42/x
3. Step 3: Cross multiply
   74,086.99x = 102,239.01 × 42,256.42
4. Step 4: Simplify right side
   74,086.99x = 4,320,254,546.94
5. Step 5: Solve for x
   x = 4,320,254,546.94/74,086.99
6. Step 6: Final answer
   x = 58,313.27