Finding the Fourth Proportional to 5,072,561.84, 7,000,855.98 and 3,139,445

Step by Step Solution

1. Step 1: Write the proportion equation
   5,072,561.84 : 7,000,855.98 = 3,139,445 : x
2. Step 2: Convert to fraction form
   5,072,561.84/7,000,855.98 = 3,139,445/x
3. Step 3: Cross multiply
   5,072,561.84x = 7,000,855.98 × 3,139,445
4. Step 4: Simplify right side
   5,072,561.84x = 21,978,802,302,131.10
5. Step 5: Solve for x
   x = 21,978,802,302,131.10/5,072,561.84
6. Step 6: Final answer
   x = 4,332,880.11