Finding the Fourth Proportional to 12,445.56, 18,669.60 and 5,869.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.56 : 18,669.60 = 5,869.98 : x
2. Step 2: Convert to fraction form
   12,445.56/18,669.60 = 5,869.98/x
3. Step 3: Cross multiply
   12,445.56x = 18,669.60 × 5,869.98
4. Step 4: Simplify right side
   12,445.56x = 109,590,178.61
5. Step 5: Solve for x
   x = 109,590,178.61/12,445.56
6. Step 6: Final answer
   x = 8,805.56