Finding the Fourth Proportional to 131,443.58, 181,400.67 and 76,264.21

Step by Step Solution

1. Step 1: Write the proportion equation
   131,443.58 : 181,400.67 = 76,264.21 : x
2. Step 2: Convert to fraction form
   131,443.58/181,400.67 = 76,264.21/x
3. Step 3: Cross multiply
   131,443.58x = 181,400.67 × 76,264.21
4. Step 4: Simplify right side
   131,443.58x = 13,834,378,791.02
5. Step 5: Solve for x
   x = 13,834,378,791.02/131,443.58
6. Step 6: Final answer
   x = 105,249.56