Finding the Fourth Proportional to 236,667.12, 354,869.46 and 78,809.46

Step by Step Solution

1. Step 1: Write the proportion equation
   236,667.12 : 354,869.46 = 78,809.46 : x
2. Step 2: Convert to fraction form
   236,667.12/354,869.46 = 78,809.46/x
3. Step 3: Cross multiply
   236,667.12x = 354,869.46 × 78,809.46
4. Step 4: Simplify right side
   236,667.12x = 27,967,070,513.09
5. Step 5: Solve for x
   x = 27,967,070,513.09/236,667.12
6. Step 6: Final answer
   x = 118,170.49