Finding the Fourth Proportional to 152,898.50, 228,998.57 and 72,992.67

Step by Step Solution

1. Step 1: Write the proportion equation
   152,898.50 : 228,998.57 = 72,992.67 : x
2. Step 2: Convert to fraction form
   152,898.50/228,998.57 = 72,992.67/x
3. Step 3: Cross multiply
   152,898.50x = 228,998.57 × 72,992.67
4. Step 4: Simplify right side
   152,898.50x = 16,715,216,685.52
5. Step 5: Solve for x
   x = 16,715,216,685.52/152,898.50
6. Step 6: Final answer
   x = 109,322.31