Finding the Fourth Proportional to 47,159.61, 71,020.19 and 42,532.89

Step by Step Solution

1. Step 1: Write the proportion equation
   47,159.61 : 71,020.19 = 42,532.89 : x
2. Step 2: Convert to fraction form
   47,159.61/71,020.19 = 42,532.89/x
3. Step 3: Cross multiply
   47,159.61x = 71,020.19 × 42,532.89
4. Step 4: Simplify right side
   47,159.61x = 3,020,693,716.38
5. Step 5: Solve for x
   x = 3,020,693,716.38/47,159.61
6. Step 6: Final answer
   x = 64,052.56