Finding the Fourth Proportional to 118,788.72, 163,928.49 and 65,075.67

Step by Step Solution

1. Step 1: Write the proportion equation
   118,788.72 : 163,928.49 = 65,075.67 : x
2. Step 2: Convert to fraction form
   118,788.72/163,928.49 = 65,075.67/x
3. Step 3: Cross multiply
   118,788.72x = 163,928.49 × 65,075.67
4. Step 4: Simplify right side
   118,788.72x = 10,667,756,318.84
5. Step 5: Solve for x
   x = 10,667,756,318.84/118,788.72
6. Step 6: Final answer
   x = 89,804.46