Finding the Fourth Proportional to 42,186.42, 58,215.78 and 23,065.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,186.42 : 58,215.78 = 23,065.56 : x
2. Step 2: Convert to fraction form
   42,186.42/58,215.78 = 23,065.56/x
3. Step 3: Cross multiply
   42,186.42x = 58,215.78 × 23,065.56
4. Step 4: Simplify right side
   42,186.42x = 1,342,779,566.54
5. Step 5: Solve for x
   x = 1,342,779,566.54/42,186.42
6. Step 6: Final answer
   x = 31,829.66