Finding the Fourth Proportional to 150,978.44, 208,354.91 and 83,000.61

Step by Step Solution

1. Step 1: Write the proportion equation
   150,978.44 : 208,354.91 = 83,000.61 : x
2. Step 2: Convert to fraction form
   150,978.44/208,354.91 = 83,000.61/x
3. Step 3: Cross multiply
   150,978.44x = 208,354.91 × 83,000.61
4. Step 4: Simplify right side
   150,978.44x = 17,293,584,626.50
5. Step 5: Solve for x
   x = 17,293,584,626.50/150,978.44
6. Step 6: Final answer
   x = 114,543.41