Finding the Fourth Proportional to 9,056.53, 12,498.61 and 5,077.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.53 : 12,498.61 = 5,077.90 : x
2. Step 2: Convert to fraction form
   9,056.53/12,498.61 = 5,077.90/x
3. Step 3: Cross multiply
   9,056.53x = 12,498.61 × 5,077.90
4. Step 4: Simplify right side
   9,056.53x = 63,466,691.72
5. Step 5: Solve for x
   x = 63,466,691.72/9,056.53
6. Step 6: Final answer
   x = 7,007.84