Finding the Fourth Proportional to 82,156.47, 113,416.77 and 51,972.22

Step by Step Solution

1. Step 1: Write the proportion equation
   82,156.47 : 113,416.77 = 51,972.22 : x
2. Step 2: Convert to fraction form
   82,156.47/113,416.77 = 51,972.22/x
3. Step 3: Cross multiply
   82,156.47x = 113,416.77 × 51,972.22
4. Step 4: Simplify right side
   82,156.47x = 5,894,521,322.13
5. Step 5: Solve for x
   x = 5,894,521,322.13/82,156.47
6. Step 6: Final answer
   x = 71,747.50