Finding the Fourth Proportional to 111,016.64, 166,549.53 and 51,819.98

Step by Step Solution

1. Step 1: Write the proportion equation
   111,016.64 : 166,549.53 = 51,819.98 : x
2. Step 2: Convert to fraction form
   111,016.64/166,549.53 = 51,819.98/x
3. Step 3: Cross multiply
   111,016.64x = 166,549.53 × 51,819.98
4. Step 4: Simplify right side
   111,016.64x = 8,630,593,313.61
5. Step 5: Solve for x
   x = 8,630,593,313.61/111,016.64
6. Step 6: Final answer
   x = 77,741.44