Finding the Fourth Proportional to 49,641.50, 74,104.84 and 42,545

Step by Step Solution

1. Step 1: Write the proportion equation
   49,641.50 : 74,104.84 = 42,545 : x
2. Step 2: Convert to fraction form
   49,641.50/74,104.84 = 42,545/x
3. Step 3: Cross multiply
   49,641.50x = 74,104.84 × 42,545
4. Step 4: Simplify right side
   49,641.50x = 3,152,790,417.80
5. Step 5: Solve for x
   x = 3,152,790,417.80/49,641.50
6. Step 6: Final answer
   x = 63,511.18