Finding the Fourth Proportional to 147,915.73, 204,222.17 and 87,505.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,915.73 : 204,222.17 = 87,505.72 : x
2. Step 2: Convert to fraction form
   147,915.73/204,222.17 = 87,505.72/x
3. Step 3: Cross multiply
   147,915.73x = 204,222.17 × 87,505.72
4. Step 4: Simplify right side
   147,915.73x = 17,870,606,567.17
5. Step 5: Solve for x
   x = 17,870,606,567.17/147,915.73
6. Step 6: Final answer
   x = 120,816.14