Finding the Fourth Proportional to 55,361,019.42, 83,043,836.55 and 18,994,424.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,361,019.42 : 83,043,836.55 = 18,994,424.31 : x
2. Step 2: Convert to fraction form
   55,361,019.42/83,043,836.55 = 18,994,424.31/x
3. Step 3: Cross multiply
   55,361,019.42x = 83,043,836.55 × 18,994,424.31
4. Step 4: Simplify right side
   55,361,019.42x = 1,577,369,867,760,986.25
5. Step 5: Solve for x
   x = 1,577,369,867,760,986.25/55,361,019.42
6. Step 6: Final answer
   x = 28,492,428.14