Finding the Fourth Proportional to 89,047.86, 133,479.48 and 55,691.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,047.86 : 133,479.48 = 55,691.34 : x
2. Step 2: Convert to fraction form
   89,047.86/133,479.48 = 55,691.34/x
3. Step 3: Cross multiply
   89,047.86x = 133,479.48 × 55,691.34
4. Step 4: Simplify right side
   89,047.86x = 7,433,651,103.70
5. Step 5: Solve for x
   x = 7,433,651,103.70/89,047.86
6. Step 6: Final answer
   x = 83,479.28