Finding the Fourth Proportional to 111,216.39, 167,583.52 and 91,927.05

Step by Step Solution

1. Step 1: Write the proportion equation
   111,216.39 : 167,583.52 = 91,927.05 : x
2. Step 2: Convert to fraction form
   111,216.39/167,583.52 = 91,927.05/x
3. Step 3: Cross multiply
   111,216.39x = 167,583.52 × 91,927.05
4. Step 4: Simplify right side
   111,216.39x = 15,405,457,763.96
5. Step 5: Solve for x
   x = 15,405,457,763.96/111,216.39
6. Step 6: Final answer
   x = 138,517.88