Finding the Fourth Proportional to 112,171.52, 154,790.88 and 69,729.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,171.52 : 154,790.88 = 69,729.32 : x
2. Step 2: Convert to fraction form
   112,171.52/154,790.88 = 69,729.32/x
3. Step 3: Cross multiply
   112,171.52x = 154,790.88 × 69,729.32
4. Step 4: Simplify right side
   112,171.52x = 10,793,462,804.60
5. Step 5: Solve for x
   x = 10,793,462,804.60/112,171.52
6. Step 6: Final answer
   x = 96,222.85