Finding the Fourth Proportional to 118,028.55, 162,783.50 and 108,188.67

Step by Step Solution

1. Step 1: Write the proportion equation
   118,028.55 : 162,783.50 = 108,188.67 : x
2. Step 2: Convert to fraction form
   118,028.55/162,783.50 = 108,188.67/x
3. Step 3: Cross multiply
   118,028.55x = 162,783.50 × 108,188.67
4. Step 4: Simplify right side
   118,028.55x = 17,611,329,822.00
5. Step 5: Solve for x
   x = 17,611,329,822.00/118,028.55
6. Step 6: Final answer
   x = 149,212.46