Finding the Fourth Proportional to 152,928.27, 229,392.61 and 58,136.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,928.27 : 229,392.61 = 58,136.20 : x
2. Step 2: Convert to fraction form
   152,928.27/229,392.61 = 58,136.20/x
3. Step 3: Cross multiply
   152,928.27x = 229,392.61 × 58,136.20
4. Step 4: Simplify right side
   152,928.27x = 13,336,013,934.66
5. Step 5: Solve for x
   x = 13,336,013,934.66/152,928.27
6. Step 6: Final answer
   x = 87,204.37