Finding the Fourth Proportional to 118,820.53, 163,972.34 and 65,107.67

Step by Step Solution

1. Step 1: Write the proportion equation
   118,820.53 : 163,972.34 = 65,107.67 : x
2. Step 2: Convert to fraction form
   118,820.53/163,972.34 = 65,107.67/x
3. Step 3: Cross multiply
   118,820.53x = 163,972.34 × 65,107.67
4. Step 4: Simplify right side
   118,820.53x = 10,675,856,100.60
5. Step 5: Solve for x
   x = 10,675,856,100.60/118,820.53
6. Step 6: Final answer
   x = 89,848.58