Finding the Fourth Proportional to 290,462.03, 435,561.82 and 103,478.39

Step by Step Solution

1. Step 1: Write the proportion equation
   290,462.03 : 435,561.82 = 103,478.39 : x
2. Step 2: Convert to fraction form
   290,462.03/435,561.82 = 103,478.39/x
3. Step 3: Cross multiply
   290,462.03x = 435,561.82 × 103,478.39
4. Step 4: Simplify right side
   290,462.03x = 45,071,233,442.56
5. Step 5: Solve for x
   x = 45,071,233,442.56/290,462.03
6. Step 6: Final answer
   x = 155,170.83