Finding the Fourth Proportional to 268,243.32, 402,427.25 and 78,696.03

Step by Step Solution

1. Step 1: Write the proportion equation
   268,243.32 : 402,427.25 = 78,696.03 : x
2. Step 2: Convert to fraction form
   268,243.32/402,427.25 = 78,696.03/x
3. Step 3: Cross multiply
   268,243.32x = 402,427.25 × 78,696.03
4. Step 4: Simplify right side
   268,243.32x = 31,669,426,938.82
5. Step 5: Solve for x
   x = 31,669,426,938.82/268,243.32
6. Step 6: Final answer
   x = 118,062.31