Finding the Fourth Proportional to 108,671.60, 149,973 and 60,922.64

Step by Step Solution

1. Step 1: Write the proportion equation
   108,671.60 : 149,973 = 60,922.64 : x
2. Step 2: Convert to fraction form
   108,671.60/149,973 = 60,922.64/x
3. Step 3: Cross multiply
   108,671.60x = 149,973 × 60,922.64
4. Step 4: Simplify right side
   108,671.60x = 9,136,751,088.72
5. Step 5: Solve for x
   x = 9,136,751,088.72/108,671.60
6. Step 6: Final answer
   x = 84,076.71