Finding the Fourth Proportional to 112,361.37, 155,045.71 and 64,630.09

Step by Step Solution

1. Step 1: Write the proportion equation
   112,361.37 : 155,045.71 = 64,630.09 : x
2. Step 2: Convert to fraction form
   112,361.37/155,045.71 = 64,630.09/x
3. Step 3: Cross multiply
   112,361.37x = 155,045.71 × 64,630.09
4. Step 4: Simplify right side
   112,361.37x = 10,020,618,191.41
5. Step 5: Solve for x
   x = 10,020,618,191.41/112,361.37
6. Step 6: Final answer
   x = 89,182.06