Finding the Fourth Proportional to 97,789.72, 134,949.90 and 53,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   97,789.72 : 134,949.90 = 53,077.72 : x
2. Step 2: Convert to fraction form
   97,789.72/134,949.90 = 53,077.72/x
3. Step 3: Cross multiply
   97,789.72x = 134,949.90 × 53,077.72
4. Step 4: Simplify right side
   97,789.72x = 7,162,833,006.23
5. Step 5: Solve for x
   x = 7,162,833,006.23/97,789.72
6. Step 6: Final answer
   x = 73,247.30