Finding the Fourth Proportional to 76,334.75, 105,354.56 and 42,354.17

Step by Step Solution

1. Step 1: Write the proportion equation
   76,334.75 : 105,354.56 = 42,354.17 : x
2. Step 2: Convert to fraction form
   76,334.75/105,354.56 = 42,354.17/x
3. Step 3: Cross multiply
   76,334.75x = 105,354.56 × 42,354.17
4. Step 4: Simplify right side
   76,334.75x = 4,462,205,313.79
5. Step 5: Solve for x
   x = 4,462,205,313.79/76,334.75
6. Step 6: Final answer
   x = 58,455.75