Finding the Fourth Proportional to 71,013.82, 106,419.22 and 52,145.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,013.82 : 106,419.22 = 52,145.82 : x
2. Step 2: Convert to fraction form
   71,013.82/106,419.22 = 52,145.82/x
3. Step 3: Cross multiply
   71,013.82x = 106,419.22 × 52,145.82
4. Step 4: Simplify right side
   71,013.82x = 5,549,317,490.66
5. Step 5: Solve for x
   x = 5,549,317,490.66/71,013.82
6. Step 6: Final answer
   x = 78,144.19