Finding the Fourth Proportional to 76,224.24, 105,178.95 and 42,224.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,224.24 : 105,178.95 = 42,224.31 : x
2. Step 2: Convert to fraction form
   76,224.24/105,178.95 = 42,224.31/x
3. Step 3: Cross multiply
   76,224.24x = 105,178.95 × 42,224.31
4. Step 4: Simplify right side
   76,224.24x = 4,441,108,590.27
5. Step 5: Solve for x
   x = 4,441,108,590.27/76,224.24
6. Step 6: Final answer
   x = 58,263.73