Finding the Fourth Proportional to 76,282.77, 105,276.45 and 42,301.91

Step by Step Solution

1. Step 1: Write the proportion equation
   76,282.77 : 105,276.45 = 42,301.91 : x
2. Step 2: Convert to fraction form
   76,282.77/105,276.45 = 42,301.91/x
3. Step 3: Cross multiply
   76,282.77x = 105,276.45 × 42,301.91
4. Step 4: Simplify right side
   76,282.77x = 4,453,395,137.45
5. Step 5: Solve for x
   x = 4,453,395,137.45/76,282.77
6. Step 6: Final answer
   x = 58,380.09