Finding the Fourth Proportional to 76,636,274.78, 105,896,399.22 and 54,571,467.41

Step by Step Solution

1. Step 1: Write the proportion equation
   76,636,274.78 : 105,896,399.22 = 54,571,467.41 : x
2. Step 2: Convert to fraction form
   76,636,274.78/105,896,399.22 = 54,571,467.41/x
3. Step 3: Cross multiply
   76,636,274.78x = 105,896,399.22 × 54,571,467.41
4. Step 4: Simplify right side
   76,636,274.78x = 5,778,921,898,341,097
5. Step 5: Solve for x
   x = 5,778,921,898,341,097/76,636,274.78
6. Step 6: Final answer
   x = 75,407,134.75