Finding the Fourth Proportional to 76,285.10, 105,279.67 and 42,304.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76,285.10 : 105,279.67 = 42,304.24 : x
2. Step 2: Convert to fraction form
   76,285.10/105,279.67 = 42,304.24/x
3. Step 3: Cross multiply
   76,285.10x = 105,279.67 × 42,304.24
4. Step 4: Simplify right side
   76,285.10x = 4,453,776,611.28
5. Step 5: Solve for x
   x = 4,453,776,611.28/76,285.10
6. Step 6: Final answer
   x = 58,383.31