Finding the Fourth Proportional to 31,229,072.58, 43,090,978.32 and 19,618,413.60

Step by Step Solution

1. Step 1: Write the proportion equation
   31,229,072.58 : 43,090,978.32 = 19,618,413.60 : x
2. Step 2: Convert to fraction form
   31,229,072.58/43,090,978.32 = 19,618,413.60/x
3. Step 3: Cross multiply
   31,229,072.58x = 43,090,978.32 × 19,618,413.60
4. Step 4: Simplify right side
   31,229,072.58x = 845,376,635,110,393.25
5. Step 5: Solve for x
   x = 845,376,635,110,393.25/31,229,072.58
6. Step 6: Final answer
   x = 27,070,180.61