Finding the Fourth Proportional to 8,788.90, 12,128.69 and 4,810.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,788.90 : 12,128.69 = 4,810.01 : x
2. Step 2: Convert to fraction form
   8,788.90/12,128.69 = 4,810.01/x
3. Step 3: Cross multiply
   8,788.90x = 12,128.69 × 4,810.01
4. Step 4: Simplify right side
   8,788.90x = 58,339,096.14
5. Step 5: Solve for x
   x = 58,339,096.14/8,788.90
6. Step 6: Final answer
   x = 6,637.82