Finding the Fourth Proportional to 40,487.00, 55,915.63 and 30,823.81

Step by Step Solution

1. Step 1: Write the proportion equation
   40,487.00 : 55,915.63 = 30,823.81 : x
2. Step 2: Convert to fraction form
   40,487.00/55,915.63 = 30,823.81/x
3. Step 3: Cross multiply
   40,487.00x = 55,915.63 × 30,823.81
4. Step 4: Simplify right side
   40,487.00x = 1,723,532,538.30
5. Step 5: Solve for x
   x = 1,723,532,538.30/40,487.00
6. Step 6: Final answer
   x = 42,570.02