Finding the Fourth Proportional to 101,952.72, 140,689.98 and 56,633.58

Step by Step Solution

1. Step 1: Write the proportion equation
   101,952.72 : 140,689.98 = 56,633.58 : x
2. Step 2: Convert to fraction form
   101,952.72/140,689.98 = 56,633.58/x
3. Step 3: Cross multiply
   101,952.72x = 140,689.98 × 56,633.58
4. Step 4: Simplify right side
   101,952.72x = 7,967,777,237.53
5. Step 5: Solve for x
   x = 7,967,777,237.53/101,952.72
6. Step 6: Final answer
   x = 78,151.69