Finding the Fourth Proportional to 76,322.74, 105,377.52 and 47,686

Step by Step Solution

1. Step 1: Write the proportion equation
   76,322.74 : 105,377.52 = 47,686 : x
2. Step 2: Convert to fraction form
   76,322.74/105,377.52 = 47,686/x
3. Step 3: Cross multiply
   76,322.74x = 105,377.52 × 47,686
4. Step 4: Simplify right side
   76,322.74x = 5,025,032,418.72
5. Step 5: Solve for x
   x = 5,025,032,418.72/76,322.74
6. Step 6: Final answer
   x = 65,839.26