Finding the Fourth Proportional to 34,128.59, 47,099.81 and 20,700.41

Step by Step Solution

1. Step 1: Write the proportion equation
   34,128.59 : 47,099.81 = 20,700.41 : x
2. Step 2: Convert to fraction form
   34,128.59/47,099.81 = 20,700.41/x
3. Step 3: Cross multiply
   34,128.59x = 47,099.81 × 20,700.41
4. Step 4: Simplify right side
   34,128.59x = 974,985,194.17
5. Step 5: Solve for x
   x = 974,985,194.17/34,128.59
6. Step 6: Final answer
   x = 28,567.99