Finding the Fourth Proportional to 11,142,515.21, 15,371,011.91 and 7,277,298.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,142,515.21 : 15,371,011.91 = 7,277,298.89 : x
2. Step 2: Convert to fraction form
   11,142,515.21/15,371,011.91 = 7,277,298.89/x
3. Step 3: Cross multiply
   11,142,515.21x = 15,371,011.91 × 7,277,298.89
4. Step 4: Simplify right side
   11,142,515.21x = 111,859,447,855,219.52
5. Step 5: Solve for x
   x = 111,859,447,855,219.52/11,142,515.21
6. Step 6: Final answer
   x = 10,038,976.46