Finding the Fourth Proportional to 148,514.69, 222,790.71 and 72,615.77

Step by Step Solution

1. Step 1: Write the proportion equation
   148,514.69 : 222,790.71 = 72,615.77 : x
2. Step 2: Convert to fraction form
   148,514.69/222,790.71 = 72,615.77/x
3. Step 3: Cross multiply
   148,514.69x = 222,790.71 × 72,615.77
4. Step 4: Simplify right side
   148,514.69x = 16,178,118,955.50
5. Step 5: Solve for x
   x = 16,178,118,955.50/148,514.69
6. Step 6: Final answer
   x = 108,932.79