Finding the Fourth Proportional to 65,774.72, 98,663.31 and 21,401.30

Step by Step Solution

1. Step 1: Write the proportion equation
   65,774.72 : 98,663.31 = 21,401.30 : x
2. Step 2: Convert to fraction form
   65,774.72/98,663.31 = 21,401.30/x
3. Step 3: Cross multiply
   65,774.72x = 98,663.31 × 21,401.30
4. Step 4: Simplify right side
   65,774.72x = 2,111,523,342.96
5. Step 5: Solve for x
   x = 2,111,523,342.96/65,774.72
6. Step 6: Final answer
   x = 32,102.35