Finding the Fourth Proportional to 5,390,274.93, 8,072,522.69 and 3,108,882.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,390,274.93 : 8,072,522.69 = 3,108,882.78 : x
2. Step 2: Convert to fraction form
   5,390,274.93/8,072,522.69 = 3,108,882.78/x
3. Step 3: Cross multiply
   5,390,274.93x = 8,072,522.69 × 3,108,882.78
4. Step 4: Simplify right side
   5,390,274.93x = 25,096,526,766,555.86
5. Step 5: Solve for x
   x = 25,096,526,766,555.86/5,390,274.93
6. Step 6: Final answer
   x = 4,655,889.93