Finding the Fourth Proportional to 59,152.72, 81,611.16 and 39,019.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,152.72 : 81,611.16 = 39,019.60 : x
2. Step 2: Convert to fraction form
   59,152.72/81,611.16 = 39,019.60/x
3. Step 3: Cross multiply
   59,152.72x = 81,611.16 × 39,019.60
4. Step 4: Simplify right side
   59,152.72x = 3,184,434,818.74
5. Step 5: Solve for x
   x = 3,184,434,818.74/59,152.72
6. Step 6: Final answer
   x = 53,834.12