Finding the Fourth Proportional to 151,930.79, 209,676.76 and 83,953.72

Step by Step Solution

1. Step 1: Write the proportion equation
   151,930.79 : 209,676.76 = 83,953.72 : x
2. Step 2: Convert to fraction form
   151,930.79/209,676.76 = 83,953.72/x
3. Step 3: Cross multiply
   151,930.79x = 209,676.76 × 83,953.72
4. Step 4: Simplify right side
   151,930.79x = 17,603,143,999.55
5. Step 5: Solve for x
   x = 17,603,143,999.55/151,930.79
6. Step 6: Final answer
   x = 115,862.91