Finding the Fourth Proportional to 9,056.90, 12,498.53 and 5,078.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.90 : 12,498.53 = 5,078.01 : x
2. Step 2: Convert to fraction form
   9,056.90/12,498.53 = 5,078.01/x
3. Step 3: Cross multiply
   9,056.90x = 12,498.53 × 5,078.01
4. Step 4: Simplify right side
   9,056.90x = 63,467,681.80
5. Step 5: Solve for x
   x = 63,467,681.80/9,056.90
6. Step 6: Final answer
   x = 7,007.66