Finding the Fourth Proportional to 42,758.48, 59,023.20 and 38,274.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,758.48 : 59,023.20 = 38,274.32 : x
2. Step 2: Convert to fraction form
   42,758.48/59,023.20 = 38,274.32/x
3. Step 3: Cross multiply
   42,758.48x = 59,023.20 × 38,274.32
4. Step 4: Simplify right side
   42,758.48x = 2,259,072,844.22
5. Step 5: Solve for x
   x = 2,259,072,844.22/42,758.48
6. Step 6: Final answer
   x = 52,833.33