Finding the Fourth Proportional to 270,086.40, 404,881.92 and 103,749.12

Step by Step Solution

1. Step 1: Write the proportion equation
   270,086.40 : 404,881.92 = 103,749.12 : x
2. Step 2: Convert to fraction form
   270,086.40/404,881.92 = 103,749.12/x
3. Step 3: Cross multiply
   270,086.40x = 404,881.92 × 103,749.12
4. Step 4: Simplify right side
   270,086.40x = 42,006,142,903.91
5. Step 5: Solve for x
   x = 42,006,142,903.91/270,086.40
6. Step 6: Final answer
   x = 155,528.54