Finding the Fourth Proportional to 151,667.72, 209,300.04 and 83,685.32

Step by Step Solution

1. Step 1: Write the proportion equation
   151,667.72 : 209,300.04 = 83,685.32 : x
2. Step 2: Convert to fraction form
   151,667.72/209,300.04 = 83,685.32/x
3. Step 3: Cross multiply
   151,667.72x = 209,300.04 × 83,685.32
4. Step 4: Simplify right side
   151,667.72x = 17,515,340,823.41
5. Step 5: Solve for x
   x = 17,515,340,823.41/151,667.72
6. Step 6: Final answer
   x = 115,484.96