Finding the Fourth Proportional to 251,498.58, 377,167.86 and 82,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,498.58 : 377,167.86 = 82,987.50 : x
2. Step 2: Convert to fraction form
   251,498.58/377,167.86 = 82,987.50/x
3. Step 3: Cross multiply
   251,498.58x = 377,167.86 × 82,987.50
4. Step 4: Simplify right side
   251,498.58x = 31,300,217,254.85
5. Step 5: Solve for x
   x = 31,300,217,254.85/251,498.58
6. Step 6: Final answer
   x = 124,454.85