Finding the Fourth Proportional to 11,911,545.32, 17,858,607.23 and 3,819,915.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,911,545.32 : 17,858,607.23 = 3,819,915.05 : x
2. Step 2: Convert to fraction form
   11,911,545.32/17,858,607.23 = 3,819,915.05/x
3. Step 3: Cross multiply
   11,911,545.32x = 17,858,607.23 × 3,819,915.05
4. Step 4: Simplify right side
   11,911,545.32x = 68,218,362,450,172.57
5. Step 5: Solve for x
   x = 68,218,362,450,172.57/11,911,545.32
6. Step 6: Final answer
   x = 5,727,079.12