Finding the Fourth Proportional to 8,810.47, 12,155.37 and 5,030.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,810.47 : 12,155.37 = 5,030.91 : x
2. Step 2: Convert to fraction form
   8,810.47/12,155.37 = 5,030.91/x
3. Step 3: Cross multiply
   8,810.47x = 12,155.37 × 5,030.91
4. Step 4: Simplify right side
   8,810.47x = 61,152,553.62
5. Step 5: Solve for x
   x = 61,152,553.62/8,810.47
6. Step 6: Final answer
   x = 6,940.89