Finding the Fourth Proportional to 101,069.38, 139,472.52 and 55,749.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,069.38 : 139,472.52 = 55,749.34 : x
2. Step 2: Convert to fraction form
   101,069.38/139,472.52 = 55,749.34/x
3. Step 3: Cross multiply
   101,069.38x = 139,472.52 × 55,749.34
4. Step 4: Simplify right side
   101,069.38x = 7,775,500,938.14
5. Step 5: Solve for x
   x = 7,775,500,938.14/101,069.38
6. Step 6: Final answer
   x = 76,932.31