Finding the Fourth Proportional to 10,056.95, 13,878.23 and 5,580.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,056.95 : 13,878.23 = 5,580.89 : x
2. Step 2: Convert to fraction form
   10,056.95/13,878.23 = 5,580.89/x
3. Step 3: Cross multiply
   10,056.95x = 13,878.23 × 5,580.89
4. Step 4: Simplify right side
   10,056.95x = 77,452,777.73
5. Step 5: Solve for x
   x = 77,452,777.73/10,056.95
6. Step 6: Final answer
   x = 7,701.42