Finding the Fourth Proportional to 51,503.86, 71,082.38 and 31,086.98

Step by Step Solution

1. Step 1: Write the proportion equation
   51,503.86 : 71,082.38 = 31,086.98 : x
2. Step 2: Convert to fraction form
   51,503.86/71,082.38 = 31,086.98/x
3. Step 3: Cross multiply
   51,503.86x = 71,082.38 × 31,086.98
4. Step 4: Simplify right side
   51,503.86x = 2,209,736,514.28
5. Step 5: Solve for x
   x = 2,209,736,514.28/51,503.86
6. Step 6: Final answer
   x = 42,904.29