Finding the Fourth Proportional to 114,578.91, 171,801.76 and 76,671.51

Step by Step Solution

1. Step 1: Write the proportion equation
   114,578.91 : 171,801.76 = 76,671.51 : x
2. Step 2: Convert to fraction form
   114,578.91/171,801.76 = 76,671.51/x
3. Step 3: Cross multiply
   114,578.91x = 171,801.76 × 76,671.51
4. Step 4: Simplify right side
   114,578.91x = 13,172,300,359.86
5. Step 5: Solve for x
   x = 13,172,300,359.86/114,578.91
6. Step 6: Final answer
   x = 114,962.70