Finding the Fourth Proportional to 99,196.95, 136,891.76 and 53,874.87

Step by Step Solution

1. Step 1: Write the proportion equation
   99,196.95 : 136,891.76 = 53,874.87 : x
2. Step 2: Convert to fraction form
   99,196.95/136,891.76 = 53,874.87/x
3. Step 3: Cross multiply
   99,196.95x = 136,891.76 × 53,874.87
4. Step 4: Simplify right side
   99,196.95x = 7,375,025,504.70
5. Step 5: Solve for x
   x = 7,375,025,504.70/99,196.95
6. Step 6: Final answer
   x = 74,347.30