Finding the Fourth Proportional to 63,456,439.76, 87,596,673.16 and 42,857,786.60

Step by Step Solution

1. Step 1: Write the proportion equation
   63,456,439.76 : 87,596,673.16 = 42,857,786.60 : x
2. Step 2: Convert to fraction form
   63,456,439.76/87,596,673.16 = 42,857,786.60/x
3. Step 3: Cross multiply
   63,456,439.76x = 87,596,673.16 × 42,857,786.60
4. Step 4: Simplify right side
   63,456,439.76x = 3,754,199,525,161,227.50
5. Step 5: Solve for x
   x = 3,754,199,525,161,227.50/63,456,439.76
6. Step 6: Final answer
   x = 59,161,836.68