Finding the Fourth Proportional to 97,797.72, 134,961 and 53,085.72

Step by Step Solution

1. Step 1: Write the proportion equation
   97,797.72 : 134,961 = 53,085.72 : x
2. Step 2: Convert to fraction form
   97,797.72/134,961 = 53,085.72/x
3. Step 3: Cross multiply
   97,797.72x = 134,961 × 53,085.72
4. Step 4: Simplify right side
   97,797.72x = 7,164,501,856.92
5. Step 5: Solve for x
   x = 7,164,501,856.92/97,797.72
6. Step 6: Final answer
   x = 73,258.37