Finding the Fourth Proportional to 193,495.32, 290,147.82 and 113,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   193,495.32 : 290,147.82 = 113,688.72 : x
2. Step 2: Convert to fraction form
   193,495.32/290,147.82 = 113,688.72/x
3. Step 3: Cross multiply
   193,495.32x = 290,147.82 × 113,688.72
4. Step 4: Simplify right side
   193,495.32x = 32,986,534,266.59
5. Step 5: Solve for x
   x = 32,986,534,266.59/193,495.32
6. Step 6: Final answer
   x = 170,477.17