Finding the Fourth Proportional to 111,855.30, 154,360.35 and 61,554.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,855.30 : 154,360.35 = 61,554.30 : x
2. Step 2: Convert to fraction form
   111,855.30/154,360.35 = 61,554.30/x
3. Step 3: Cross multiply
   111,855.30x = 154,360.35 × 61,554.30
4. Step 4: Simplify right side
   111,855.30x = 9,501,543,755.89
5. Step 5: Solve for x
   x = 9,501,543,755.89/111,855.30
6. Step 6: Final answer
   x = 84,944.95