Finding the Fourth Proportional to 89,732.84, 134,601.42 and 42,934.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,732.84 : 134,601.42 = 42,934.28 : x
2. Step 2: Convert to fraction form
   89,732.84/134,601.42 = 42,934.28/x
3. Step 3: Cross multiply
   89,732.84x = 134,601.42 × 42,934.28
4. Step 4: Simplify right side
   89,732.84x = 5,779,015,054.68
5. Step 5: Solve for x
   x = 5,779,015,054.68/89,732.84
6. Step 6: Final answer
   x = 64,402.45