Finding the Fourth Proportional to 58,557.30, 87,786.72 and 47,436.42

Step by Step Solution

1. Step 1: Write the proportion equation
   58,557.30 : 87,786.72 = 47,436.42 : x
2. Step 2: Convert to fraction form
   58,557.30/87,786.72 = 47,436.42/x
3. Step 3: Cross multiply
   58,557.30x = 87,786.72 × 47,436.42
4. Step 4: Simplify right side
   58,557.30x = 4,164,287,720.34
5. Step 5: Solve for x
   x = 4,164,287,720.34/58,557.30
6. Step 6: Final answer
   x = 71,114.75