Finding the Fourth Proportional to 10,054.90, 15,086.67 and 7,151.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,054.90 : 15,086.67 = 7,151.86 : x
2. Step 2: Convert to fraction form
   10,054.90/15,086.67 = 7,151.86/x
3. Step 3: Cross multiply
   10,054.90x = 15,086.67 × 7,151.86
4. Step 4: Simplify right side
   10,054.90x = 107,897,751.71
5. Step 5: Solve for x
   x = 107,897,751.71/10,054.90
6. Step 6: Final answer
   x = 10,730.86