Finding the Fourth Proportional to 65,601.63, 98,404.61 and 21,228.75

Step by Step Solution

1. Step 1: Write the proportion equation
   65,601.63 : 98,404.61 = 21,228.75 : x
2. Step 2: Convert to fraction form
   65,601.63/98,404.61 = 21,228.75/x
3. Step 3: Cross multiply
   65,601.63x = 98,404.61 × 21,228.75
4. Step 4: Simplify right side
   65,601.63x = 2,089,006,758.39
5. Step 5: Solve for x
   x = 2,089,006,758.39/65,601.63
6. Step 6: Final answer
   x = 31,843.82