Finding the Fourth Proportional to 55,161,742.72, 82,713,887.83 and 20,589,717.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,161,742.72 : 82,713,887.83 = 20,589,717.81 : x
2. Step 2: Convert to fraction form
   55,161,742.72/82,713,887.83 = 20,589,717.81/x
3. Step 3: Cross multiply
   55,161,742.72x = 82,713,887.83 × 20,589,717.81
4. Step 4: Simplify right side
   55,161,742.72x = 1,703,055,609,387,693
5. Step 5: Solve for x
   x = 1,703,055,609,387,693/55,161,742.72
6. Step 6: Final answer
   x = 30,873,854.33