Finding the Fourth Proportional to 131,013.93, 180,789.27 and 73,644.12

Step by Step Solution

1. Step 1: Write the proportion equation
   131,013.93 : 180,789.27 = 73,644.12 : x
2. Step 2: Convert to fraction form
   131,013.93/180,789.27 = 73,644.12/x
3. Step 3: Cross multiply
   131,013.93x = 180,789.27 × 73,644.12
4. Step 4: Simplify right side
   131,013.93x = 13,314,066,694.59
5. Step 5: Solve for x
   x = 13,314,066,694.59/131,013.93
6. Step 6: Final answer
   x = 101,623.29