Finding the Fourth Proportional to 89,072.01, 133,622.54 and 42,309.09

Step by Step Solution

1. Step 1: Write the proportion equation
   89,072.01 : 133,622.54 = 42,309.09 : x
2. Step 2: Convert to fraction form
   89,072.01/133,622.54 = 42,309.09/x
3. Step 3: Cross multiply
   89,072.01x = 133,622.54 × 42,309.09
4. Step 4: Simplify right side
   89,072.01x = 5,653,447,859.34
5. Step 5: Solve for x
   x = 5,653,447,859.34/89,072.01
6. Step 6: Final answer
   x = 63,470.53