Finding the Fourth Proportional to 112,078.56, 154,667.42 and 61,091.28

Step by Step Solution

1. Step 1: Write the proportion equation
   112,078.56 : 154,667.42 = 61,091.28 : x
2. Step 2: Convert to fraction form
   112,078.56/154,667.42 = 61,091.28/x
3. Step 3: Cross multiply
   112,078.56x = 154,667.42 × 61,091.28
4. Step 4: Simplify right side
   112,078.56x = 9,448,830,662.10
5. Step 5: Solve for x
   x = 9,448,830,662.10/112,078.56
6. Step 6: Final answer
   x = 84,305.43