Finding the Fourth Proportional to 213,065.37, 294,031.89 and 117,578.52

Step by Step Solution

1. Step 1: Write the proportion equation
   213,065.37 : 294,031.89 = 117,578.52 : x
2. Step 2: Convert to fraction form
   213,065.37/294,031.89 = 117,578.52/x
3. Step 3: Cross multiply
   213,065.37x = 294,031.89 × 117,578.52
4. Step 4: Simplify right side
   213,065.37x = 34,571,834,459.00
5. Step 5: Solve for x
   x = 34,571,834,459.00/213,065.37
6. Step 6: Final answer
   x = 162,259.28