Finding the Fourth Proportional to 369,667.48, 554,536.14 and 103,428.04

Step by Step Solution

1. Step 1: Write the proportion equation
   369,667.48 : 554,536.14 = 103,428.04 : x
2. Step 2: Convert to fraction form
   369,667.48/554,536.14 = 103,428.04/x
3. Step 3: Cross multiply
   369,667.48x = 554,536.14 × 103,428.04
4. Step 4: Simplify right side
   369,667.48x = 57,354,586,069.37
5. Step 5: Solve for x
   x = 57,354,586,069.37/369,667.48
6. Step 6: Final answer
   x = 155,151.83