Finding the Fourth Proportional to 213,185.96, 294,196.68 and 117,692.72

Step by Step Solution

1. Step 1: Write the proportion equation
   213,185.96 : 294,196.68 = 117,692.72 : x
2. Step 2: Convert to fraction form
   213,185.96/294,196.68 = 117,692.72/x
3. Step 3: Cross multiply
   213,185.96x = 294,196.68 × 117,692.72
4. Step 4: Simplify right side
   213,185.96x = 34,624,807,484.17
5. Step 5: Solve for x
   x = 34,624,807,484.17/213,185.96
6. Step 6: Final answer
   x = 162,415.98