Finding the Fourth Proportional to 65,870.16, 98,820.96 and 21,497.00

Step by Step Solution

1. Step 1: Write the proportion equation
   65,870.16 : 98,820.96 = 21,497.00 : x
2. Step 2: Convert to fraction form
   65,870.16/98,820.96 = 21,497.00/x
3. Step 3: Cross multiply
   65,870.16x = 98,820.96 × 21,497.00
4. Step 4: Simplify right side
   65,870.16x = 2,124,353,683.02
5. Step 5: Solve for x
   x = 2,124,353,683.02/65,870.16
6. Step 6: Final answer
   x = 32,250.62