Finding the Fourth Proportional to 65,821.16, 98,741.98 and 21,437.58

Step by Step Solution

1. Step 1: Write the proportion equation
   65,821.16 : 98,741.98 = 21,437.58 : x
2. Step 2: Convert to fraction form
   65,821.16/98,741.98 = 21,437.58/x
3. Step 3: Cross multiply
   65,821.16x = 98,741.98 × 21,437.58
4. Step 4: Simplify right side
   65,821.16x = 2,116,789,492.69
5. Step 5: Solve for x
   x = 2,116,789,492.69/65,821.16
6. Step 6: Final answer
   x = 32,159.71