Finding the Fourth Proportional to 88,959.72, 133,460.76 and 28,987.86

Step by Step Solution

1. Step 1: Write the proportion equation
   88,959.72 : 133,460.76 = 28,987.86 : x
2. Step 2: Convert to fraction form
   88,959.72/133,460.76 = 28,987.86/x
3. Step 3: Cross multiply
   88,959.72x = 133,460.76 × 28,987.86
4. Step 4: Simplify right side
   88,959.72x = 3,868,741,826.37
5. Step 5: Solve for x
   x = 3,868,741,826.37/88,959.72
6. Step 6: Final answer
   x = 43,488.69