Finding the Fourth Proportional to 99,712.07, 149,443.37 and 49,806.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,712.07 : 149,443.37 = 49,806.10 : x
2. Step 2: Convert to fraction form
   99,712.07/149,443.37 = 49,806.10/x
3. Step 3: Cross multiply
   99,712.07x = 149,443.37 × 49,806.10
4. Step 4: Simplify right side
   99,712.07x = 7,443,190,994.64
5. Step 5: Solve for x
   x = 7,443,190,994.64/99,712.07
6. Step 6: Final answer
   x = 74,646.84