Finding the Fourth Proportional to 43,458,308.10, 65,196,210.15 and 12,752,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,458,308.10 : 65,196,210.15 = 12,752,828.10 : x
2. Step 2: Convert to fraction form
   43,458,308.10/65,196,210.15 = 12,752,828.10/x
3. Step 3: Cross multiply
   43,458,308.10x = 65,196,210.15 × 12,752,828.10
4. Step 4: Simplify right side
   43,458,308.10x = 831,436,060,814,425.12
5. Step 5: Solve for x
   x = 831,436,060,814,425.12/43,458,308.10
6. Step 6: Final answer
   x = 19,131,809.25