Finding the Fourth Proportional to 83,435.30, 117,042.70 and 83,435.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,435.30 : 117,042.70 = 83,435.30 : x
2. Step 2: Convert to fraction form
   83,435.30/117,042.70 = 83,435.30/x
3. Step 3: Cross multiply
   83,435.30x = 117,042.70 × 83,435.30
4. Step 4: Simplify right side
   83,435.30x = 9,765,492,787.31
5. Step 5: Solve for x
   x = 9,765,492,787.31/83,435.30
6. Step 6: Final answer
   x = 117,042.70