Finding the Fourth Proportional to 111,947, 167,986.11 and 80,322.98

Step by Step Solution

1. Step 1: Write the proportion equation
   111,947 : 167,986.11 = 80,322.98 : x
2. Step 2: Convert to fraction form
   111,947/167,986.11 = 80,322.98/x
3. Step 3: Cross multiply
   111,947x = 167,986.11 × 80,322.98
4. Step 4: Simplify right side
   111,947x = 13,493,144,953.81
5. Step 5: Solve for x
   x = 13,493,144,953.81/111,947
6. Step 6: Final answer
   x = 120,531.55