Finding the Fourth Proportional to 10,451.61, 15,678.89 and 3,056.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,451.61 : 15,678.89 = 3,056.63 : x
2. Step 2: Convert to fraction form
   10,451.61/15,678.89 = 3,056.63/x
3. Step 3: Cross multiply
   10,451.61x = 15,678.89 × 3,056.63
4. Step 4: Simplify right side
   10,451.61x = 47,924,471.86
5. Step 5: Solve for x
   x = 47,924,471.86/10,451.61
6. Step 6: Final answer
   x = 4,585.37