Finding the Fourth Proportional to 13,077.30, 19,613.90 and 4,756.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.30 : 19,613.90 = 4,756.10 : x
2. Step 2: Convert to fraction form
   13,077.30/19,613.90 = 4,756.10/x
3. Step 3: Cross multiply
   13,077.30x = 19,613.90 × 4,756.10
4. Step 4: Simplify right side
   13,077.30x = 93,285,547.94
5. Step 5: Solve for x
   x = 93,285,547.94/13,077.30
6. Step 6: Final answer
   x = 7,133.40