Finding the Fourth Proportional to 117,891.24, 176,819.31 and 42,993.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,891.24 : 176,819.31 = 42,993.78 : x
2. Step 2: Convert to fraction form
   117,891.24/176,819.31 = 42,993.78/x
3. Step 3: Cross multiply
   117,891.24x = 176,819.31 × 42,993.78
4. Step 4: Simplify right side
   117,891.24x = 7,602,130,513.89
5. Step 5: Solve for x
   x = 7,602,130,513.89/117,891.24
6. Step 6: Final answer
   x = 64,484.27