Finding the Fourth Proportional to 97,764.72, 146,610.60 and 38,580.72

Step by Step Solution

1. Step 1: Write the proportion equation
   97,764.72 : 146,610.60 = 38,580.72 : x
2. Step 2: Convert to fraction form
   97,764.72/146,610.60 = 38,580.72/x
3. Step 3: Cross multiply
   97,764.72x = 146,610.60 × 38,580.72
4. Step 4: Simplify right side
   97,764.72x = 5,656,342,507.63
5. Step 5: Solve for x
   x = 5,656,342,507.63/97,764.72
6. Step 6: Final answer
   x = 57,856.68