Finding the Fourth Proportional to 111,972, 167,967.72 and 28,866

Step by Step Solution

1. Step 1: Write the proportion equation
   111,972 : 167,967.72 = 28,866 : x
2. Step 2: Convert to fraction form
   111,972/167,967.72 = 28,866/x
3. Step 3: Cross multiply
   111,972x = 167,967.72 × 28,866
4. Step 4: Simplify right side
   111,972x = 4,848,556,205.52
5. Step 5: Solve for x
   x = 4,848,556,205.52/111,972
6. Step 6: Final answer
   x = 43,301.51