Finding the Fourth Proportional to 5,275,128.17, 7,912,605.89 and 1,680,846.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,275,128.17 : 7,912,605.89 = 1,680,846.53 : x
2. Step 2: Convert to fraction form
   5,275,128.17/7,912,605.89 = 1,680,846.53/x
3. Step 3: Cross multiply
   5,275,128.17x = 7,912,605.89 × 1,680,846.53
4. Step 4: Simplify right side
   5,275,128.17x = 13,299,876,118,103.15
5. Step 5: Solve for x
   x = 13,299,876,118,103.15/5,275,128.17
6. Step 6: Final answer
   x = 2,521,242.27