Finding the Fourth Proportional to 236,300.94, 354,333.15 and 78,474.06

Step by Step Solution

1. Step 1: Write the proportion equation
   236,300.94 : 354,333.15 = 78,474.06 : x
2. Step 2: Convert to fraction form
   236,300.94/354,333.15 = 78,474.06/x
3. Step 3: Cross multiply
   236,300.94x = 354,333.15 × 78,474.06
4. Step 4: Simplify right side
   236,300.94x = 27,805,960,873.09
5. Step 5: Solve for x
   x = 27,805,960,873.09/236,300.94
6. Step 6: Final answer
   x = 117,671.82