Finding the Fourth Proportional to 109,648.72, 151,306.14 and 64,321.96

Step by Step Solution

1. Step 1: Write the proportion equation
   109,648.72 : 151,306.14 = 64,321.96 : x
2. Step 2: Convert to fraction form
   109,648.72/151,306.14 = 64,321.96/x
3. Step 3: Cross multiply
   109,648.72x = 151,306.14 × 64,321.96
4. Step 4: Simplify right side
   109,648.72x = 9,732,307,484.83
5. Step 5: Solve for x
   x = 9,732,307,484.83/109,648.72
6. Step 6: Final answer
   x = 88,758.97