Finding the Fourth Proportional to 42,121.60, 58,128.24 and 23,256.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,121.60 : 58,128.24 = 23,256.16 : x
2. Step 2: Convert to fraction form
   42,121.60/58,128.24 = 23,256.16/x
3. Step 3: Cross multiply
   42,121.60x = 58,128.24 × 23,256.16
4. Step 4: Simplify right side
   42,121.60x = 1,351,839,649.96
5. Step 5: Solve for x
   x = 1,351,839,649.96/42,121.60
6. Step 6: Final answer
   x = 32,093.74