Finding the Fourth Proportional to 42,121.86, 58,114.16 and 27,788.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,121.86 : 58,114.16 = 27,788.81 : x
2. Step 2: Convert to fraction form
   42,121.86/58,114.16 = 27,788.81/x
3. Step 3: Cross multiply
   42,121.86x = 58,114.16 × 27,788.81
4. Step 4: Simplify right side
   42,121.86x = 1,614,922,921.03
5. Step 5: Solve for x
   x = 1,614,922,921.03/42,121.86
6. Step 6: Final answer
   x = 38,339.31