Finding the Fourth Proportional to 64,877,896.21, 89,521,865.98 and 39,404,059.33

Step by Step Solution

1. Step 1: Write the proportion equation
   64,877,896.21 : 89,521,865.98 = 39,404,059.33 : x
2. Step 2: Convert to fraction form
   64,877,896.21/89,521,865.98 = 39,404,059.33/x
3. Step 3: Cross multiply
   64,877,896.21x = 89,521,865.98 × 39,404,059.33
4. Step 4: Simplify right side
   64,877,896.21x = 3,527,524,918,408,228.50
5. Step 5: Solve for x
   x = 3,527,524,918,408,228.50/64,877,896.21
6. Step 6: Final answer
   x = 54,371,752.55