Finding the Fourth Proportional to 10,056.12, 13,877.40 and 5,580.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,056.12 : 13,877.40 = 5,580.18 : x
2. Step 2: Convert to fraction form
   10,056.12/13,877.40 = 5,580.18/x
3. Step 3: Cross multiply
   10,056.12x = 13,877.40 × 5,580.18
4. Step 4: Simplify right side
   10,056.12x = 77,438,389.93
5. Step 5: Solve for x
   x = 77,438,389.93/10,056.12
6. Step 6: Final answer
   x = 7,700.62