Finding the Fourth Proportional to 357,915.59, 536,873.49 and 105,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   357,915.59 : 536,873.49 = 105,196.12 : x
2. Step 2: Convert to fraction form
   357,915.59/536,873.49 = 105,196.12/x
3. Step 3: Cross multiply
   357,915.59x = 536,873.49 × 105,196.12
4. Step 4: Simplify right side
   357,915.59x = 56,477,007,032.54
5. Step 5: Solve for x
   x = 56,477,007,032.54/357,915.59
6. Step 6: Final answer
   x = 157,794.21