Finding the Fourth Proportional to 99,196.47, 136,891.11 and 53,874.54

Step by Step Solution

1. Step 1: Write the proportion equation
   99,196.47 : 136,891.11 = 53,874.54 : x
2. Step 2: Convert to fraction form
   99,196.47/136,891.11 = 53,874.54/x
3. Step 3: Cross multiply
   99,196.47x = 136,891.11 × 53,874.54
4. Step 4: Simplify right side
   99,196.47x = 7,374,945,581.34
5. Step 5: Solve for x
   x = 7,374,945,581.34/99,196.47
6. Step 6: Final answer
   x = 74,346.86