Finding the Fourth Proportional to 53,574, 73,898.78 and 34,478.70

Step by Step Solution

1. Step 1: Write the proportion equation
   53,574 : 73,898.78 = 34,478.70 : x
2. Step 2: Convert to fraction form
   53,574/73,898.78 = 34,478.70/x
3. Step 3: Cross multiply
   53,574x = 73,898.78 × 34,478.70
4. Step 4: Simplify right side
   53,574x = 2,547,933,693.59
5. Step 5: Solve for x
   x = 2,547,933,693.59/53,574
6. Step 6: Final answer
   x = 47,559.15