Finding the Fourth Proportional to 111,954.07, 167,905.59 and 31,990.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,954.07 : 167,905.59 = 31,990.60 : x
2. Step 2: Convert to fraction form
   111,954.07/167,905.59 = 31,990.60/x
3. Step 3: Cross multiply
   111,954.07x = 167,905.59 × 31,990.60
4. Step 4: Simplify right side
   111,954.07x = 5,371,400,567.45
5. Step 5: Solve for x
   x = 5,371,400,567.45/111,954.07
6. Step 6: Final answer
   x = 47,978.61