Finding the Fourth Proportional to 89,865.57, 134,815.64 and 34,457.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,865.57 : 134,815.64 = 34,457.25 : x
2. Step 2: Convert to fraction form
   89,865.57/134,815.64 = 34,457.25/x
3. Step 3: Cross multiply
   89,865.57x = 134,815.64 × 34,457.25
4. Step 4: Simplify right side
   89,865.57x = 4,645,376,039.10
5. Step 5: Solve for x
   x = 4,645,376,039.10/89,865.57
6. Step 6: Final answer
   x = 51,692.50