Finding the Fourth Proportional to 99,238.38, 136,949.16 and 53,915.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,238.38 : 136,949.16 = 53,915.94 : x
2. Step 2: Convert to fraction form
   99,238.38/136,949.16 = 53,915.94/x
3. Step 3: Cross multiply
   99,238.38x = 136,949.16 × 53,915.94
4. Step 4: Simplify right side
   99,238.38x = 7,383,742,693.61
5. Step 5: Solve for x
   x = 7,383,742,693.61/99,238.38
6. Step 6: Final answer
   x = 74,404.10