Finding the Fourth Proportional to 76,335, 105,354.91 and 42,354.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,335 : 105,354.91 = 42,354.42 : x
2. Step 2: Convert to fraction form
   76,335/105,354.91 = 42,354.42/x
3. Step 3: Cross multiply
   76,335x = 105,354.91 × 42,354.42
4. Step 4: Simplify right side
   76,335x = 4,462,246,107.20
5. Step 5: Solve for x
   x = 4,462,246,107.20/76,335
6. Step 6: Final answer
   x = 58,456.10