Finding the Fourth Proportional to 76,367.40, 105,387.59 and 42,376.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,367.40 : 105,387.59 = 42,376.02 : x
2. Step 2: Convert to fraction form
   76,367.40/105,387.59 = 42,376.02/x
3. Step 3: Cross multiply
   76,367.40x = 105,387.59 × 42,376.02
4. Step 4: Simplify right side
   76,367.40x = 4,465,906,621.59
5. Step 5: Solve for x
   x = 4,465,906,621.59/76,367.40
6. Step 6: Final answer
   x = 58,479.23