Finding the Fourth Proportional to 151,601.98, 209,211.72 and 83,620.79

Step by Step Solution

1. Step 1: Write the proportion equation
   151,601.98 : 209,211.72 = 83,620.79 : x
2. Step 2: Convert to fraction form
   151,601.98/209,211.72 = 83,620.79/x
3. Step 3: Cross multiply
   151,601.98x = 209,211.72 × 83,620.79
4. Step 4: Simplify right side
   151,601.98x = 17,494,449,303.66
5. Step 5: Solve for x
   x = 17,494,449,303.66/151,601.98
6. Step 6: Final answer
   x = 115,397.23