Finding the Fourth Proportional to 52,537.72, 72,443.18 and 42,947.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,537.72 : 72,443.18 = 42,947.80 : x
2. Step 2: Convert to fraction form
   52,537.72/72,443.18 = 42,947.80/x
3. Step 3: Cross multiply
   52,537.72x = 72,443.18 × 42,947.80
4. Step 4: Simplify right side
   52,537.72x = 3,111,275,206.00
5. Step 5: Solve for x
   x = 3,111,275,206.00/52,537.72
6. Step 6: Final answer
   x = 59,219.84