Finding the Fourth Proportional to 212,978.52, 293,926.86 and 117,493.56

Step by Step Solution

1. Step 1: Write the proportion equation
   212,978.52 : 293,926.86 = 117,493.56 : x
2. Step 2: Convert to fraction form
   212,978.52/293,926.86 = 117,493.56/x
3. Step 3: Cross multiply
   212,978.52x = 293,926.86 × 117,493.56
4. Step 4: Simplify right side
   212,978.52x = 34,534,513,161.02
5. Step 5: Solve for x
   x = 34,534,513,161.02/212,978.52
6. Step 6: Final answer
   x = 162,150.22