Finding the Fourth Proportional to 187,580.72, 258,790.72 and 123,085.52

Step by Step Solution

1. Step 1: Write the proportion equation
   187,580.72 : 258,790.72 = 123,085.52 : x
2. Step 2: Convert to fraction form
   187,580.72/258,790.72 = 123,085.52/x
3. Step 3: Cross multiply
   187,580.72x = 258,790.72 × 123,085.52
4. Step 4: Simplify right side
   187,580.72x = 31,853,390,342.37
5. Step 5: Solve for x
   x = 31,853,390,342.37/187,580.72
6. Step 6: Final answer
   x = 169,811.64