Finding the Fourth Proportional to 151,692.30, 209,333.34 and 83,707.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,692.30 : 209,333.34 = 83,707.56 : x
2. Step 2: Convert to fraction form
   151,692.30/209,333.34 = 83,707.56/x
3. Step 3: Cross multiply
   151,692.30x = 209,333.34 × 83,707.56
4. Step 4: Simplify right side
   151,692.30x = 17,522,783,118.05
5. Step 5: Solve for x
   x = 17,522,783,118.05/151,692.30
6. Step 6: Final answer
   x = 115,515.31