Finding the Fourth Proportional to 101,016.72, 139,404.04 and 55,696.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,016.72 : 139,404.04 = 55,696.34 : x
2. Step 2: Convert to fraction form
   101,016.72/139,404.04 = 55,696.34/x
3. Step 3: Cross multiply
   101,016.72x = 139,404.04 × 55,696.34
4. Step 4: Simplify right side
   101,016.72x = 7,764,295,018.48
5. Step 5: Solve for x
   x = 7,764,295,018.48/101,016.72
6. Step 6: Final answer
   x = 76,861.48