Finding the Fourth Proportional to 81,066.51, 121,634.82 and 43,582.77

Step by Step Solution

1. Step 1: Write the proportion equation
   81,066.51 : 121,634.82 = 43,582.77 : x
2. Step 2: Convert to fraction form
   81,066.51/121,634.82 = 43,582.77/x
3. Step 3: Cross multiply
   81,066.51x = 121,634.82 × 43,582.77
4. Step 4: Simplify right side
   81,066.51x = 5,301,182,384.05
5. Step 5: Solve for x
   x = 5,301,182,384.05/81,066.51
6. Step 6: Final answer
   x = 65,393.00