Finding the Fourth Proportional to 10,077.12, 15,051.18 and 7,999.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,077.12 : 15,051.18 = 7,999.50 : x
2. Step 2: Convert to fraction form
   10,077.12/15,051.18 = 7,999.50/x
3. Step 3: Cross multiply
   10,077.12x = 15,051.18 × 7,999.50
4. Step 4: Simplify right side
   10,077.12x = 120,401,914.41
5. Step 5: Solve for x
   x = 120,401,914.41/10,077.12
6. Step 6: Final answer
   x = 11,948.05