Finding the Fourth Proportional to 99,719.37, 149,540.51 and 38,922.12

Step by Step Solution

1. Step 1: Write the proportion equation
   99,719.37 : 149,540.51 = 38,922.12 : x
2. Step 2: Convert to fraction form
   99,719.37/149,540.51 = 38,922.12/x
3. Step 3: Cross multiply
   99,719.37x = 149,540.51 × 38,922.12
4. Step 4: Simplify right side
   99,719.37x = 5,820,433,772.39
5. Step 5: Solve for x
   x = 5,820,433,772.39/99,719.37
6. Step 6: Final answer
   x = 58,368.14