Finding the Fourth Proportional to 76,246.45, 105,218.82 and 42,254.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,246.45 : 105,218.82 = 42,254.82 : x
2. Step 2: Convert to fraction form
   76,246.45/105,218.82 = 42,254.82/x
3. Step 3: Cross multiply
   76,246.45x = 105,218.82 × 42,254.82
4. Step 4: Simplify right side
   76,246.45x = 4,446,002,299.71
5. Step 5: Solve for x
   x = 4,446,002,299.71/76,246.45
6. Step 6: Final answer
   x = 58,310.94