Finding the Fourth Proportional to 291,196.89, 436,623.03 and 113,496.57

Step by Step Solution

1. Step 1: Write the proportion equation
   291,196.89 : 436,623.03 = 113,496.57 : x
2. Step 2: Convert to fraction form
   291,196.89/436,623.03 = 113,496.57/x
3. Step 3: Cross multiply
   291,196.89x = 436,623.03 × 113,496.57
4. Step 4: Simplify right side
   291,196.89x = 49,555,216,288.01
5. Step 5: Solve for x
   x = 49,555,216,288.01/291,196.89
6. Step 6: Final answer
   x = 170,177.70