Finding the Fourth Proportional to 290,111.36, 435,157.88 and 79,747.52

Step by Step Solution

1. Step 1: Write the proportion equation
   290,111.36 : 435,157.88 = 79,747.52 : x
2. Step 2: Convert to fraction form
   290,111.36/435,157.88 = 79,747.52/x
3. Step 3: Cross multiply
   290,111.36x = 435,157.88 × 79,747.52
4. Step 4: Simplify right side
   290,111.36x = 34,702,761,738.46
5. Step 5: Solve for x
   x = 34,702,761,738.46/290,111.36
6. Step 6: Final answer
   x = 119,618.76