Finding the Fourth Proportional to 64,976,367.47, 89,664,817.80 and 38,855,320.61

Step by Step Solution

1. Step 1: Write the proportion equation
   64,976,367.47 : 89,664,817.80 = 38,855,320.61 : x
2. Step 2: Convert to fraction form
   64,976,367.47/89,664,817.80 = 38,855,320.61/x
3. Step 3: Cross multiply
   64,976,367.47x = 89,664,817.80 × 38,855,320.61
4. Step 4: Simplify right side
   64,976,367.47x = 3,483,955,242,607,910.50
5. Step 5: Solve for x
   x = 3,483,955,242,607,910.50/64,976,367.47
6. Step 6: Final answer
   x = 53,618,806.01