Finding the Fourth Proportional to 12,483.95, 18,726.80 and 5,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,483.95 : 18,726.80 = 5,091.89 : x
2. Step 2: Convert to fraction form
   12,483.95/18,726.80 = 5,091.89/x
3. Step 3: Cross multiply
   12,483.95x = 18,726.80 × 5,091.89
4. Step 4: Simplify right side
   12,483.95x = 95,354,686.56
5. Step 5: Solve for x
   x = 95,354,686.56/12,483.95
6. Step 6: Final answer
   x = 7,638.19