Finding the Fourth Proportional to 152,433.30, 228,212.55 and 148,059.30

Step by Step Solution

1. Step 1: Write the proportion equation
   152,433.30 : 228,212.55 = 148,059.30 : x
2. Step 2: Convert to fraction form
   152,433.30/228,212.55 = 148,059.30/x
3. Step 3: Cross multiply
   152,433.30x = 228,212.55 × 148,059.30
4. Step 4: Simplify right side
   152,433.30x = 33,788,990,404.22
5. Step 5: Solve for x
   x = 33,788,990,404.22/152,433.30
6. Step 6: Final answer
   x = 221,664.10