Finding the Fourth Proportional to 88,712.03, 122,404.32 and 50,978.99

Step by Step Solution

1. Step 1: Write the proportion equation
   88,712.03 : 122,404.32 = 50,978.99 : x
2. Step 2: Convert to fraction form
   88,712.03/122,404.32 = 50,978.99/x
3. Step 3: Cross multiply
   88,712.03x = 122,404.32 × 50,978.99
4. Step 4: Simplify right side
   88,712.03x = 6,240,048,911.25
5. Step 5: Solve for x
   x = 6,240,048,911.25/88,712.03
6. Step 6: Final answer
   x = 70,340.50