Finding the Fourth Proportional to 151,656.76, 209,288.46 and 83,676.70

Step by Step Solution

1. Step 1: Write the proportion equation
   151,656.76 : 209,288.46 = 83,676.70 : x
2. Step 2: Convert to fraction form
   151,656.76/209,288.46 = 83,676.70/x
3. Step 3: Cross multiply
   151,656.76x = 209,288.46 × 83,676.70
4. Step 4: Simplify right side
   151,656.76x = 17,512,567,680.88
5. Step 5: Solve for x
   x = 17,512,567,680.88/151,656.76
6. Step 6: Final answer
   x = 115,475.02