Finding the Fourth Proportional to 10,131.48, 13,980.02 and 5,654.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.48 : 13,980.02 = 5,654.61 : x
2. Step 2: Convert to fraction form
   10,131.48/13,980.02 = 5,654.61/x
3. Step 3: Cross multiply
   10,131.48x = 13,980.02 × 5,654.61
4. Step 4: Simplify right side
   10,131.48x = 79,051,532.62
5. Step 5: Solve for x
   x = 79,051,532.62/10,131.48
6. Step 6: Final answer
   x = 7,802.57