Finding the Fourth Proportional to 81,222.16, 112,088.06 and 45,408.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,222.16 : 112,088.06 = 45,408.34 : x
2. Step 2: Convert to fraction form
   81,222.16/112,088.06 = 45,408.34/x
3. Step 3: Cross multiply
   81,222.16x = 112,088.06 × 45,408.34
4. Step 4: Simplify right side
   81,222.16x = 5,089,732,738.42
5. Step 5: Solve for x
   x = 5,089,732,738.42/81,222.16
6. Step 6: Final answer
   x = 62,664.34