Finding the Fourth Proportional to 42,504,663.36, 63,754,596.86 and 18,836,111.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,504,663.36 : 63,754,596.86 = 18,836,111.29 : x
2. Step 2: Convert to fraction form
   42,504,663.36/63,754,596.86 = 18,836,111.29/x
3. Step 3: Cross multiply
   42,504,663.36x = 63,754,596.86 × 18,836,111.29
4. Step 4: Simplify right side
   42,504,663.36x = 1,200,888,681,981,860.25
5. Step 5: Solve for x
   x = 1,200,888,681,981,860.25/42,504,663.36
6. Step 6: Final answer
   x = 28,253,104.18