Finding the Fourth Proportional to 112,855.46, 155,745.59 and 64,461.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,855.46 : 155,745.59 = 64,461.60 : x
2. Step 2: Convert to fraction form
   112,855.46/155,745.59 = 64,461.60/x
3. Step 3: Cross multiply
   112,855.46x = 155,745.59 × 64,461.60
4. Step 4: Simplify right side
   112,855.46x = 10,039,609,602.04
5. Step 5: Solve for x
   x = 10,039,609,602.04/112,855.46
6. Step 6: Final answer
   x = 88,959.90