Finding the Fourth Proportional to 209,185.32, 288,677.98 and 113,692.02

Step by Step Solution

1. Step 1: Write the proportion equation
   209,185.32 : 288,677.98 = 113,692.02 : x
2. Step 2: Convert to fraction form
   209,185.32/288,677.98 = 113,692.02/x
3. Step 3: Cross multiply
   209,185.32x = 288,677.98 × 113,692.02
4. Step 4: Simplify right side
   209,185.32x = 32,820,382,675.72
5. Step 5: Solve for x
   x = 32,820,382,675.72/209,185.32
6. Step 6: Final answer
   x = 156,896.20