Finding the Fourth Proportional to 210,196.72, 290,077.59 and 114,709.56

Step by Step Solution

1. Step 1: Write the proportion equation
   210,196.72 : 290,077.59 = 114,709.56 : x
2. Step 2: Convert to fraction form
   210,196.72/290,077.59 = 114,709.56/x
3. Step 3: Cross multiply
   210,196.72x = 290,077.59 × 114,709.56
4. Step 4: Simplify right side
   210,196.72x = 33,274,672,714.76
5. Step 5: Solve for x
   x = 33,274,672,714.76/210,196.72
6. Step 6: Final answer
   x = 158,302.53