Finding the Fourth Proportional to 181,626.22, 272,436.59 and 81,715.86

Step by Step Solution

1. Step 1: Write the proportion equation
   181,626.22 : 272,436.59 = 81,715.86 : x
2. Step 2: Convert to fraction form
   181,626.22/272,436.59 = 81,715.86/x
3. Step 3: Cross multiply
   181,626.22x = 272,436.59 × 81,715.86
4. Step 4: Simplify right side
   181,626.22x = 22,262,390,247.32
5. Step 5: Solve for x
   x = 22,262,390,247.32/181,626.22
6. Step 6: Final answer
   x = 122,572.56