Finding the Fourth Proportional to 42,256.39, 58,268.47 and 35,615.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,256.39 : 58,268.47 = 35,615.20 : x
2. Step 2: Convert to fraction form
   42,256.39/58,268.47 = 35,615.20/x
3. Step 3: Cross multiply
   42,256.39x = 58,268.47 × 35,615.20
4. Step 4: Simplify right side
   42,256.39x = 2,075,242,743.33
5. Step 5: Solve for x
   x = 2,075,242,743.33/42,256.39
6. Step 6: Final answer
   x = 49,110.75