Finding the Fourth Proportional to 10,679,139.60, 16,017,154.20 and 3,105,315.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,679,139.60 : 16,017,154.20 = 3,105,315.60 : x
2. Step 2: Convert to fraction form
   10,679,139.60/16,017,154.20 = 3,105,315.60/x
3. Step 3: Cross multiply
   10,679,139.60x = 16,017,154.20 × 3,105,315.60
4. Step 4: Simplify right side
   10,679,139.60x = 49,738,318,804,865.52
5. Step 5: Solve for x
   x = 49,738,318,804,865.52/10,679,139.60
6. Step 6: Final answer
   x = 4,657,521.17