Finding the Fourth Proportional to 43,538,713.32, 65,317,517.82 and 13,245,789

Step by Step Solution

1. Step 1: Write the proportion equation
   43,538,713.32 : 65,317,517.82 = 13,245,789 : x
2. Step 2: Convert to fraction form
   43,538,713.32/65,317,517.82 = 13,245,789/x
3. Step 3: Cross multiply
   43,538,713.32x = 65,317,517.82 × 13,245,789
4. Step 4: Simplify right side
   43,538,713.32x = 865,182,059,047,460
5. Step 5: Solve for x
   x = 865,182,059,047,460/43,538,713.32
6. Step 6: Final answer
   x = 19,871,557.82