Finding the Fourth Proportional to 12,475.69, 18,721.01 and 4,977.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,475.69 : 18,721.01 = 4,977.93 : x
2. Step 2: Convert to fraction form
   12,475.69/18,721.01 = 4,977.93/x
3. Step 3: Cross multiply
   12,475.69x = 18,721.01 × 4,977.93
4. Step 4: Simplify right side
   12,475.69x = 93,191,877.31
5. Step 5: Solve for x
   x = 93,191,877.31/12,475.69
6. Step 6: Final answer
   x = 7,469.88