Finding the Fourth Proportional to 76,336.76, 105,357.33 and 42,356.18

Step by Step Solution

1. Step 1: Write the proportion equation
   76,336.76 : 105,357.33 = 42,356.18 : x
2. Step 2: Convert to fraction form
   76,336.76/105,357.33 = 42,356.18/x
3. Step 3: Cross multiply
   76,336.76x = 105,357.33 × 42,356.18
4. Step 4: Simplify right side
   76,336.76x = 4,462,533,295.23
5. Step 5: Solve for x
   x = 4,462,533,295.23/76,336.76
6. Step 6: Final answer
   x = 58,458.51