Finding the Fourth Proportional to 101,342.72, 139,850.20 and 56,017.52

Step by Step Solution

1. Step 1: Write the proportion equation
   101,342.72 : 139,850.20 = 56,017.52 : x
2. Step 2: Convert to fraction form
   101,342.72/139,850.20 = 56,017.52/x
3. Step 3: Cross multiply
   101,342.72x = 139,850.20 × 56,017.52
4. Step 4: Simplify right side
   101,342.72x = 7,834,061,375.50
5. Step 5: Solve for x
   x = 7,834,061,375.50/101,342.72
6. Step 6: Final answer
   x = 77,302.66