Finding the Fourth Proportional to 76,299.99, 105,293.46 and 42,308.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,299.99 : 105,293.46 = 42,308.46 : x
2. Step 2: Convert to fraction form
   76,299.99/105,293.46 = 42,308.46/x
3. Step 3: Cross multiply
   76,299.99x = 105,293.46 × 42,308.46
4. Step 4: Simplify right side
   76,299.99x = 4,454,804,140.67
5. Step 5: Solve for x
   x = 4,454,804,140.67/76,299.99
6. Step 6: Final answer
   x = 58,385.38