Finding the Fourth Proportional to 89,623.38, 134,463.32 and 42,236.55

Step by Step Solution

1. Step 1: Write the proportion equation
   89,623.38 : 134,463.32 = 42,236.55 : x
2. Step 2: Convert to fraction form
   89,623.38/134,463.32 = 42,236.55/x
3. Step 3: Cross multiply
   89,623.38x = 134,463.32 × 42,236.55
4. Step 4: Simplify right side
   89,623.38x = 5,679,266,527.16
5. Step 5: Solve for x
   x = 5,679,266,527.16/89,623.38
6. Step 6: Final answer
   x = 63,368.14