Finding the Fourth Proportional to 76,300.26, 105,293.82 and 42,308.73

Step by Step Solution

1. Step 1: Write the proportion equation
   76,300.26 : 105,293.82 = 42,308.73 : x
2. Step 2: Convert to fraction form
   76,300.26/105,293.82 = 42,308.73/x
3. Step 3: Cross multiply
   76,300.26x = 105,293.82 × 42,308.73
4. Step 4: Simplify right side
   76,300.26x = 4,454,847,959.71
5. Step 5: Solve for x
   x = 4,454,847,959.71/76,300.26
6. Step 6: Final answer
   x = 58,385.75