Finding the Fourth Proportional to 111,709.98, 154,155.86 and 61,408.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,709.98 : 154,155.86 = 61,408.62 : x
2. Step 2: Convert to fraction form
   111,709.98/154,155.86 = 61,408.62/x
3. Step 3: Cross multiply
   111,709.98x = 154,155.86 × 61,408.62
4. Step 4: Simplify right side
   111,709.98x = 9,466,498,627.51
5. Step 5: Solve for x
   x = 9,466,498,627.51/111,709.98
6. Step 6: Final answer
   x = 84,741.74