Finding the Fourth Proportional to 154,748.72, 213,646.38 and 101,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   154,748.72 : 213,646.38 = 101,123.48 : x
2. Step 2: Convert to fraction form
   154,748.72/213,646.38 = 101,123.48/x
3. Step 3: Cross multiply
   154,748.72x = 213,646.38 × 101,123.48
4. Step 4: Simplify right side
   154,748.72x = 21,604,665,435.00
5. Step 5: Solve for x
   x = 21,604,665,435.00/154,748.72
6. Step 6: Final answer
   x = 139,611.27