Finding the Fourth Proportional to 51,802.80, 71,513.88 and 30,588.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,802.80 : 71,513.88 = 30,588.72 : x
2. Step 2: Convert to fraction form
   51,802.80/71,513.88 = 30,588.72/x
3. Step 3: Cross multiply
   51,802.80x = 71,513.88 × 30,588.72
4. Step 4: Simplify right side
   51,802.80x = 2,187,518,051.43
5. Step 5: Solve for x
   x = 2,187,518,051.43/51,802.80
6. Step 6: Final answer
   x = 42,227.80