Finding the Fourth Proportional to 298,003.83, 447,005.71 and 87,641.76

Step by Step Solution

1. Step 1: Write the proportion equation
   298,003.83 : 447,005.71 = 87,641.76 : x
2. Step 2: Convert to fraction form
   298,003.83/447,005.71 = 87,641.76/x
3. Step 3: Cross multiply
   298,003.83x = 447,005.71 × 87,641.76
4. Step 4: Simplify right side
   298,003.83x = 39,176,367,154.45
5. Step 5: Solve for x
   x = 39,176,367,154.45/298,003.83
6. Step 6: Final answer
   x = 131,462.63