Finding the Fourth Proportional to 11,142,515.81, 15,371,012.72 and 7,277,299.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,142,515.81 : 15,371,012.72 = 7,277,299.49 : x
2. Step 2: Convert to fraction form
   11,142,515.81/15,371,012.72 = 7,277,299.49/x
3. Step 3: Cross multiply
   11,142,515.81x = 15,371,012.72 × 7,277,299.49
4. Step 4: Simplify right side
   11,142,515.81x = 111,859,462,951,184.45
5. Step 5: Solve for x
   x = 111,859,462,951,184.45/11,142,515.81
6. Step 6: Final answer
   x = 10,038,977.27