Finding the Fourth Proportional to 117,141.38, 175,711.59 and 28,394.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,141.38 : 175,711.59 = 28,394.78 : x
2. Step 2: Convert to fraction form
   117,141.38/175,711.59 = 28,394.78/x
3. Step 3: Cross multiply
   117,141.38x = 175,711.59 × 28,394.78
4. Step 4: Simplify right side
   117,141.38x = 4,989,291,941.50
5. Step 5: Solve for x
   x = 4,989,291,941.50/117,141.38
6. Step 6: Final answer
   x = 42,592.05