Finding the Fourth Proportional to 42,311.17, 58,390.05 and 23,190.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,311.17 : 58,390.05 = 23,190.79 : x
2. Step 2: Convert to fraction form
   42,311.17/58,390.05 = 23,190.79/x
3. Step 3: Cross multiply
   42,311.17x = 58,390.05 × 23,190.79
4. Step 4: Simplify right side
   42,311.17x = 1,354,111,095.69
5. Step 5: Solve for x
   x = 1,354,111,095.69/42,311.17
6. Step 6: Final answer
   x = 32,003.64