Finding the Fourth Proportional to 111,859, 154,365.45 and 61,558

Step by Step Solution

1. Step 1: Write the proportion equation
   111,859 : 154,365.45 = 61,558 : x
2. Step 2: Convert to fraction form
   111,859/154,365.45 = 61,558/x
3. Step 3: Cross multiply
   111,859x = 154,365.45 × 61,558
4. Step 4: Simplify right side
   111,859x = 9,502,428,371.10
5. Step 5: Solve for x
   x = 9,502,428,371.10/111,859
6. Step 6: Final answer
   x = 84,950.06