Finding the Fourth Proportional to 10,863,921.90, 16,297,851.15 and 5,458,970.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,863,921.90 : 16,297,851.15 = 5,458,970.10 : x
2. Step 2: Convert to fraction form
   10,863,921.90/16,297,851.15 = 5,458,970.10/x
3. Step 3: Cross multiply
   10,863,921.90x = 16,297,851.15 × 5,458,970.10
4. Step 4: Simplify right side
   10,863,921.90x = 88,969,482,122,100.61
5. Step 5: Solve for x
   x = 88,969,482,122,100.61/10,863,921.90
6. Step 6: Final answer
   x = 8,189,444.19