Finding the Fourth Proportional to 112,766.52, 155,689.56 and 70,387.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,766.52 : 155,689.56 = 70,387.32 : x
2. Step 2: Convert to fraction form
   112,766.52/155,689.56 = 70,387.32/x
3. Step 3: Cross multiply
   112,766.52x = 155,689.56 × 70,387.32
4. Step 4: Simplify right side
   112,766.52x = 10,958,570,880.38
5. Step 5: Solve for x
   x = 10,958,570,880.38/112,766.52
6. Step 6: Final answer
   x = 97,179.29