Finding the Fourth Proportional to 147,573, 203,660.28 and 83,916.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,573 : 203,660.28 = 83,916.72 : x
2. Step 2: Convert to fraction form
   147,573/203,660.28 = 83,916.72/x
3. Step 3: Cross multiply
   147,573x = 203,660.28 × 83,916.72
4. Step 4: Simplify right side
   147,573x = 17,090,502,691.88
5. Step 5: Solve for x
   x = 17,090,502,691.88/147,573
6. Step 6: Final answer
   x = 115,810.50