Finding the Fourth Proportional to 42,053,046.27, 63,090,223.60 and 12,908,362.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053,046.27 : 63,090,223.60 = 12,908,362.82 : x
2. Step 2: Convert to fraction form
   42,053,046.27/63,090,223.60 = 12,908,362.82/x
3. Step 3: Cross multiply
   42,053,046.27x = 63,090,223.60 × 12,908,362.82
4. Step 4: Simplify right side
   42,053,046.27x = 814,391,496,629,448.12
5. Step 5: Solve for x
   x = 814,391,496,629,448.12/42,053,046.27
6. Step 6: Final answer
   x = 19,365,814.58