Finding the Fourth Proportional to 12,645,575.90, 18,968,413.06 and 3,060,939.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645,575.90 : 18,968,413.06 = 3,060,939.05 : x
2. Step 2: Convert to fraction form
   12,645,575.90/18,968,413.06 = 3,060,939.05/x
3. Step 3: Cross multiply
   12,645,575.90x = 18,968,413.06 × 3,060,939.05
4. Step 4: Simplify right side
   12,645,575.90x = 58,061,156,251,883.98
5. Step 5: Solve for x
   x = 58,061,156,251,883.98/12,645,575.90
6. Step 6: Final answer
   x = 4,591,420.49