Finding the Fourth Proportional to 147,947.16, 204,156.84 and 83,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,947.16 : 204,156.84 = 83,418.72 : x
2. Step 2: Convert to fraction form
   147,947.16/204,156.84 = 83,418.72/x
3. Step 3: Cross multiply
   147,947.16x = 204,156.84 × 83,418.72
4. Step 4: Simplify right side
   147,947.16x = 17,030,502,272.04
5. Step 5: Solve for x
   x = 17,030,502,272.04/147,947.16
6. Step 6: Final answer
   x = 115,112.06