Finding the Fourth Proportional to 76,337.76, 105,358.71 and 42,357.18

Step by Step Solution

1. Step 1: Write the proportion equation
   76,337.76 : 105,358.71 = 42,357.18 : x
2. Step 2: Convert to fraction form
   76,337.76/105,358.71 = 42,357.18/x
3. Step 3: Cross multiply
   76,337.76x = 105,358.71 × 42,357.18
4. Step 4: Simplify right side
   76,337.76x = 4,462,697,844.04
5. Step 5: Solve for x
   x = 4,462,697,844.04/76,337.76
6. Step 6: Final answer
   x = 58,459.90