Finding the Fourth Proportional to 89,734.84, 134,604.42 and 42,936.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,734.84 : 134,604.42 = 42,936.28 : x
2. Step 2: Convert to fraction form
   89,734.84/134,604.42 = 42,936.28/x
3. Step 3: Cross multiply
   89,734.84x = 134,604.42 × 42,936.28
4. Step 4: Simplify right side
   89,734.84x = 5,779,413,066.36
5. Step 5: Solve for x
   x = 5,779,413,066.36/89,734.84
6. Step 6: Final answer
   x = 64,405.45