Finding the Fourth Proportional to 88,100.28, 121,580.78 and 47,814.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,100.28 : 121,580.78 = 47,814.12 : x
2. Step 2: Convert to fraction form
   88,100.28/121,580.78 = 47,814.12/x
3. Step 3: Cross multiply
   88,100.28x = 121,580.78 × 47,814.12
4. Step 4: Simplify right side
   88,100.28x = 5,813,277,765.54
5. Step 5: Solve for x
   x = 5,813,277,765.54/88,100.28
6. Step 6: Final answer
   x = 65,984.78