Finding the Fourth Proportional to 51,742.86, 71,404.50 and 29,085.69

Step by Step Solution

1. Step 1: Write the proportion equation
   51,742.86 : 71,404.50 = 29,085.69 : x
2. Step 2: Convert to fraction form
   51,742.86/71,404.50 = 29,085.69/x
3. Step 3: Cross multiply
   51,742.86x = 71,404.50 × 29,085.69
4. Step 4: Simplify right side
   51,742.86x = 2,076,849,151.61
5. Step 5: Solve for x
   x = 2,076,849,151.61/51,742.86
6. Step 6: Final answer
   x = 40,137.89