Finding the Fourth Proportional to 89,522.70, 134,276.49 and 42,126.63

Step by Step Solution

1. Step 1: Write the proportion equation
   89,522.70 : 134,276.49 = 42,126.63 : x
2. Step 2: Convert to fraction form
   89,522.70/134,276.49 = 42,126.63/x
3. Step 3: Cross multiply
   89,522.70x = 134,276.49 × 42,126.63
4. Step 4: Simplify right side
   89,522.70x = 5,656,616,011.93
5. Step 5: Solve for x
   x = 5,656,616,011.93/89,522.70
6. Step 6: Final answer
   x = 63,186.39