Finding the Fourth Proportional to 101,638.53, 140,277.56 and 65,932.38

Step by Step Solution

1. Step 1: Write the proportion equation
   101,638.53 : 140,277.56 = 65,932.38 : x
2. Step 2: Convert to fraction form
   101,638.53/140,277.56 = 65,932.38/x
3. Step 3: Cross multiply
   101,638.53x = 140,277.56 × 65,932.38
4. Step 4: Simplify right side
   101,638.53x = 9,248,833,061.73
5. Step 5: Solve for x
   x = 9,248,833,061.73/101,638.53
6. Step 6: Final answer
   x = 90,997.31