Finding the Fourth Proportional to 116,724.88, 175,142 and 57,528.28

Step by Step Solution

1. Step 1: Write the proportion equation
   116,724.88 : 175,142 = 57,528.28 : x
2. Step 2: Convert to fraction form
   116,724.88/175,142 = 57,528.28/x
3. Step 3: Cross multiply
   116,724.88x = 175,142 × 57,528.28
4. Step 4: Simplify right side
   116,724.88x = 10,075,618,015.76
5. Step 5: Solve for x
   x = 10,075,618,015.76/116,724.88
6. Step 6: Final answer
   x = 86,319.37