Finding the Fourth Proportional to 76,339.76, 105,349.50 and 42,350.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,339.76 : 105,349.50 = 42,350.46 : x
2. Step 2: Convert to fraction form
   76,339.76/105,349.50 = 42,350.46/x
3. Step 3: Cross multiply
   76,339.76x = 105,349.50 × 42,350.46
4. Step 4: Simplify right side
   76,339.76x = 4,461,599,785.77
5. Step 5: Solve for x
   x = 4,461,599,785.77/76,339.76
6. Step 6: Final answer
   x = 58,443.99