Finding the Fourth Proportional to 271,610.10, 407,123.55 and 103,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   271,610.10 : 407,123.55 = 103,065.30 : x
2. Step 2: Convert to fraction form
   271,610.10/407,123.55 = 103,065.30/x
3. Step 3: Cross multiply
   271,610.10x = 407,123.55 × 103,065.30
4. Step 4: Simplify right side
   271,610.10x = 41,960,310,817.82
5. Step 5: Solve for x
   x = 41,960,310,817.82/271,610.10
6. Step 6: Final answer
   x = 154,487.30