Finding the Fourth Proportional to 81,886.37, 122,632.72 and 46,719.41

Step by Step Solution

1. Step 1: Write the proportion equation
   81,886.37 : 122,632.72 = 46,719.41 : x
2. Step 2: Convert to fraction form
   81,886.37/122,632.72 = 46,719.41/x
3. Step 3: Cross multiply
   81,886.37x = 122,632.72 × 46,719.41
4. Step 4: Simplify right side
   81,886.37x = 5,729,328,325.10
5. Step 5: Solve for x
   x = 5,729,328,325.10/81,886.37
6. Step 6: Final answer
   x = 69,966.81