Finding the Fourth Proportional to 123,421.24, 185,140.50 and 61,075

Step by Step Solution

1. Step 1: Write the proportion equation
   123,421.24 : 185,140.50 = 61,075 : x
2. Step 2: Convert to fraction form
   123,421.24/185,140.50 = 61,075/x
3. Step 3: Cross multiply
   123,421.24x = 185,140.50 × 61,075
4. Step 4: Simplify right side
   123,421.24x = 11,307,456,037.50
5. Step 5: Solve for x
   x = 11,307,456,037.50/123,421.24
6. Step 6: Final answer
   x = 91,616.78