Finding the Fourth Proportional to 53,156.22, 79,317.89 and 47,571.18

Step by Step Solution

1. Step 1: Write the proportion equation
   53,156.22 : 79,317.89 = 47,571.18 : x
2. Step 2: Convert to fraction form
   53,156.22/79,317.89 = 47,571.18/x
3. Step 3: Cross multiply
   53,156.22x = 79,317.89 × 47,571.18
4. Step 4: Simplify right side
   53,156.22x = 3,773,245,384.55
5. Step 5: Solve for x
   x = 3,773,245,384.55/53,156.22
6. Step 6: Final answer
   x = 70,984.08