Finding the Fourth Proportional to 81,536.86, 112,416.71 and 52,805.76

Step by Step Solution

1. Step 1: Write the proportion equation
   81,536.86 : 112,416.71 = 52,805.76 : x
2. Step 2: Convert to fraction form
   81,536.86/112,416.71 = 52,805.76/x
3. Step 3: Cross multiply
   81,536.86x = 112,416.71 × 52,805.76
4. Step 4: Simplify right side
   81,536.86x = 5,936,249,419.69
5. Step 5: Solve for x
   x = 5,936,249,419.69/81,536.86
6. Step 6: Final answer
   x = 72,804.49