Finding the Fourth Proportional to 83,787.59, 115,628.84 and 45,549.31

Step by Step Solution

1. Step 1: Write the proportion equation
   83,787.59 : 115,628.84 = 45,549.31 : x
2. Step 2: Convert to fraction form
   83,787.59/115,628.84 = 45,549.31/x
3. Step 3: Cross multiply
   83,787.59x = 115,628.84 × 45,549.31
4. Step 4: Simplify right side
   83,787.59x = 5,266,813,878.10
5. Step 5: Solve for x
   x = 5,266,813,878.10/83,787.59
6. Step 6: Final answer
   x = 62,859.12