Finding the Fourth Proportional to 9,977.02, 13,767.82 and 5,725.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.02 : 13,767.82 = 5,725.13 : x
2. Step 2: Convert to fraction form
   9,977.02/13,767.82 = 5,725.13/x
3. Step 3: Cross multiply
   9,977.02x = 13,767.82 × 5,725.13
4. Step 4: Simplify right side
   9,977.02x = 78,822,585.81
5. Step 5: Solve for x
   x = 78,822,585.81/9,977.02
6. Step 6: Final answer
   x = 7,900.41