Finding the Fourth Proportional to 290,200.86, 435,303.72 and 79,850.34

Step by Step Solution

1. Step 1: Write the proportion equation
   290,200.86 : 435,303.72 = 79,850.34 : x
2. Step 2: Convert to fraction form
   290,200.86/435,303.72 = 79,850.34/x
3. Step 3: Cross multiply
   290,200.86x = 435,303.72 × 79,850.34
4. Step 4: Simplify right side
   290,200.86x = 34,759,150,045.26
5. Step 5: Solve for x
   x = 34,759,150,045.26/290,200.86
6. Step 6: Final answer
   x = 119,776.18