Finding the Fourth Proportional to 129,742.56, 194,496.72 and 46,617.12

Step by Step Solution

1. Step 1: Write the proportion equation
   129,742.56 : 194,496.72 = 46,617.12 : x
2. Step 2: Convert to fraction form
   129,742.56/194,496.72 = 46,617.12/x
3. Step 3: Cross multiply
   129,742.56x = 194,496.72 × 46,617.12
4. Step 4: Simplify right side
   129,742.56x = 9,066,876,935.85
5. Step 5: Solve for x
   x = 9,066,876,935.85/129,742.56
6. Step 6: Final answer
   x = 69,883.60