Finding the Fourth Proportional to 97,786.78, 134,945.88 and 53,074.78

Step by Step Solution

1. Step 1: Write the proportion equation
   97,786.78 : 134,945.88 = 53,074.78 : x
2. Step 2: Convert to fraction form
   97,786.78/134,945.88 = 53,074.78/x
3. Step 3: Cross multiply
   97,786.78x = 134,945.88 × 53,074.78
4. Step 4: Simplify right side
   97,786.78x = 7,162,222,892.91
5. Step 5: Solve for x
   x = 7,162,222,892.91/97,786.78
6. Step 6: Final answer
   x = 73,243.26