Finding the Fourth Proportional to 34,128.96, 47,072.52 and 30,305.22

Step by Step Solution

1. Step 1: Write the proportion equation
   34,128.96 : 47,072.52 = 30,305.22 : x
2. Step 2: Convert to fraction form
   34,128.96/47,072.52 = 30,305.22/x
3. Step 3: Cross multiply
   34,128.96x = 47,072.52 × 30,305.22
4. Step 4: Simplify right side
   34,128.96x = 1,426,543,074.55
5. Step 5: Solve for x
   x = 1,426,543,074.55/34,128.96
6. Step 6: Final answer
   x = 41,798.61