Finding the Fourth Proportional to 111,540.86, 167,108.30 and 99,583.43

Step by Step Solution

1. Step 1: Write the proportion equation
   111,540.86 : 167,108.30 = 99,583.43 : x
2. Step 2: Convert to fraction form
   111,540.86/167,108.30 = 99,583.43/x
3. Step 3: Cross multiply
   111,540.86x = 167,108.30 × 99,583.43
4. Step 4: Simplify right side
   111,540.86x = 16,641,216,362.01
5. Step 5: Solve for x
   x = 16,641,216,362.01/111,540.86
6. Step 6: Final answer
   x = 149,193.91