Finding the Fourth Proportional to 112,667.80, 155,495.46 and 64,281.64

Step by Step Solution

1. Step 1: Write the proportion equation
   112,667.80 : 155,495.46 = 64,281.64 : x
2. Step 2: Convert to fraction form
   112,667.80/155,495.46 = 64,281.64/x
3. Step 3: Cross multiply
   112,667.80x = 155,495.46 × 64,281.64
4. Step 4: Simplify right side
   112,667.80x = 9,995,503,181.35
5. Step 5: Solve for x
   x = 9,995,503,181.35/112,667.80
6. Step 6: Final answer
   x = 88,716.59