Finding the Fourth Proportional to 6,931,409.18, 10,390,126.28 and 2,890,128.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,931,409.18 : 10,390,126.28 = 2,890,128.56 : x
2. Step 2: Convert to fraction form
   6,931,409.18/10,390,126.28 = 2,890,128.56/x
3. Step 3: Cross multiply
   6,931,409.18x = 10,390,126.28 × 2,890,128.56
4. Step 4: Simplify right side
   6,931,409.18x = 30,028,800,703,834.55
5. Step 5: Solve for x
   x = 30,028,800,703,834.55/6,931,409.18
6. Step 6: Final answer
   x = 4,332,279.33