Finding the Fourth Proportional to 151,698.41, 209,348.06 and 83,719.67

Step by Step Solution

1. Step 1: Write the proportion equation
   151,698.41 : 209,348.06 = 83,719.67 : x
2. Step 2: Convert to fraction form
   151,698.41/209,348.06 = 83,719.67/x
3. Step 3: Cross multiply
   151,698.41x = 209,348.06 × 83,719.67
4. Step 4: Simplify right side
   151,698.41x = 17,526,550,498.34
5. Step 5: Solve for x
   x = 17,526,550,498.34/151,698.41
6. Step 6: Final answer
   x = 115,535.49