Finding the Fourth Proportional to 111,459.52, 167,186.72 and 28,353.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,459.52 : 167,186.72 = 28,353.60 : x
2. Step 2: Convert to fraction form
   111,459.52/167,186.72 = 28,353.60/x
3. Step 3: Cross multiply
   111,459.52x = 167,186.72 × 28,353.60
4. Step 4: Simplify right side
   111,459.52x = 4,740,345,384.19
5. Step 5: Solve for x
   x = 4,740,345,384.19/111,459.52
6. Step 6: Final answer
   x = 42,529.75