Finding the Fourth Proportional to 42,223.79, 58,276.86 and 30,156.95

Step by Step Solution

1. Step 1: Write the proportion equation
   42,223.79 : 58,276.86 = 30,156.95 : x
2. Step 2: Convert to fraction form
   42,223.79/58,276.86 = 30,156.95/x
3. Step 3: Cross multiply
   42,223.79x = 58,276.86 × 30,156.95
4. Step 4: Simplify right side
   42,223.79x = 1,757,452,353.18
5. Step 5: Solve for x
   x = 1,757,452,353.18/42,223.79
6. Step 6: Final answer
   x = 41,622.33