Finding the Fourth Proportional to 101,426.10, 139,920.88 and 65,627.67

Step by Step Solution

1. Step 1: Write the proportion equation
   101,426.10 : 139,920.88 = 65,627.67 : x
2. Step 2: Convert to fraction form
   101,426.10/139,920.88 = 65,627.67/x
3. Step 3: Cross multiply
   101,426.10x = 139,920.88 × 65,627.67
4. Step 4: Simplify right side
   101,426.10x = 9,182,681,338.75
5. Step 5: Solve for x
   x = 9,182,681,338.75/101,426.10
6. Step 6: Final answer
   x = 90,535.68