Finding the Fourth Proportional to 117,141.41, 175,689.78 and 57,109.63

Step by Step Solution

1. Step 1: Write the proportion equation
   117,141.41 : 175,689.78 = 57,109.63 : x
2. Step 2: Convert to fraction form
   117,141.41/175,689.78 = 57,109.63/x
3. Step 3: Cross multiply
   117,141.41x = 175,689.78 × 57,109.63
4. Step 4: Simplify right side
   117,141.41x = 10,033,578,330.58
5. Step 5: Solve for x
   x = 10,033,578,330.58/117,141.41
6. Step 6: Final answer
   x = 85,653.56