Finding the Fourth Proportional to 4,280,128.42, 6,418,326.24 and 1,618,870.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,280,128.42 : 6,418,326.24 = 1,618,870.18 : x
2. Step 2: Convert to fraction form
   4,280,128.42/6,418,326.24 = 1,618,870.18/x
3. Step 3: Cross multiply
   4,280,128.42x = 6,418,326.24 × 1,618,870.18
4. Step 4: Simplify right side
   4,280,128.42x = 10,390,436,955,447.52
5. Step 5: Solve for x
   x = 10,390,436,955,447.52/4,280,128.42
6. Step 6: Final answer
   x = 2,427,599.35