Finding the Fourth Proportional to 123,795, 185,692.50 and 68,391

Step by Step Solution

1. Step 1: Write the proportion equation
   123,795 : 185,692.50 = 68,391 : x
2. Step 2: Convert to fraction form
   123,795/185,692.50 = 68,391/x
3. Step 3: Cross multiply
   123,795x = 185,692.50 × 68,391
4. Step 4: Simplify right side
   123,795x = 12,699,695,767.50
5. Step 5: Solve for x
   x = 12,699,695,767.50/123,795
6. Step 6: Final answer
   x = 102,586.50