Finding the Fourth Proportional to 212,385.42, 293,093.88 and 116,894.31

Step by Step Solution

1. Step 1: Write the proportion equation
   212,385.42 : 293,093.88 = 116,894.31 : x
2. Step 2: Convert to fraction form
   212,385.42/293,093.88 = 116,894.31/x
3. Step 3: Cross multiply
   212,385.42x = 293,093.88 × 116,894.31
4. Step 4: Simplify right side
   212,385.42x = 34,261,006,867.82
5. Step 5: Solve for x
   x = 34,261,006,867.82/212,385.42
6. Step 6: Final answer
   x = 161,315.25