Finding the Fourth Proportional to 71,166.21, 106,663.01 and 52,271.05

Step by Step Solution

1. Step 1: Write the proportion equation
   71,166.21 : 106,663.01 = 52,271.05 : x
2. Step 2: Convert to fraction form
   71,166.21/106,663.01 = 52,271.05/x
3. Step 3: Cross multiply
   71,166.21x = 106,663.01 × 52,271.05
4. Step 4: Simplify right side
   71,166.21x = 5,575,387,528.86
5. Step 5: Solve for x
   x = 5,575,387,528.86/71,166.21
6. Step 6: Final answer
   x = 78,343.18