Finding the Fourth Proportional to 59,136, 81,607.68 and 32,640

Step by Step Solution

1. Step 1: Write the proportion equation
   59,136 : 81,607.68 = 32,640 : x
2. Step 2: Convert to fraction form
   59,136/81,607.68 = 32,640/x
3. Step 3: Cross multiply
   59,136x = 81,607.68 × 32,640
4. Step 4: Simplify right side
   59,136x = 2,663,674,675.20
5. Step 5: Solve for x
   x = 2,663,674,675.20/59,136
6. Step 6: Final answer
   x = 45,043.20