Finding the Fourth Proportional to 42,959,926.96, 64,419,911.88 and 15,647,205.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,959,926.96 : 64,419,911.88 = 15,647,205.76 : x
2. Step 2: Convert to fraction form
   42,959,926.96/64,419,911.88 = 15,647,205.76/x
3. Step 3: Cross multiply
   42,959,926.96x = 64,419,911.88 × 15,647,205.76
4. Step 4: Simplify right side
   42,959,926.96x = 1,007,991,616,227,428.50
5. Step 5: Solve for x
   x = 1,007,991,616,227,428.50/42,959,926.96
6. Step 6: Final answer
   x = 23,463,531.89