Finding the Fourth Proportional to 65,790.32, 98,697.48 and 21,419.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,790.32 : 98,697.48 = 21,419.12 : x
2. Step 2: Convert to fraction form
   65,790.32/98,697.48 = 21,419.12/x
3. Step 3: Cross multiply
   65,790.32x = 98,697.48 × 21,419.12
4. Step 4: Simplify right side
   65,790.32x = 2,114,013,167.82
5. Step 5: Solve for x
   x = 2,114,013,167.82/65,790.32
6. Step 6: Final answer
   x = 32,132.59