Finding the Fourth Proportional to 12,571,942.38, 17,349,401.79 and 7,139,473.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,571,942.38 : 17,349,401.79 = 7,139,473.26 : x
2. Step 2: Convert to fraction form
   12,571,942.38/17,349,401.79 = 7,139,473.26/x
3. Step 3: Cross multiply
   12,571,942.38x = 17,349,401.79 × 7,139,473.26
4. Step 4: Simplify right side
   12,571,942.38x = 123,865,590,156,701.12
5. Step 5: Solve for x
   x = 123,865,590,156,701.12/12,571,942.38
6. Step 6: Final answer
   x = 9,852,541.99