Finding the Fourth Proportional to 316,063.34, 436,131.69 and 187,005.77

Step by Step Solution

1. Step 1: Write the proportion equation
   316,063.34 : 436,131.69 = 187,005.77 : x
2. Step 2: Convert to fraction form
   316,063.34/436,131.69 = 187,005.77/x
3. Step 3: Cross multiply
   316,063.34x = 436,131.69 × 187,005.77
4. Step 4: Simplify right side
   316,063.34x = 81,559,142,509.85
5. Step 5: Solve for x
   x = 81,559,142,509.85/316,063.34
6. Step 6: Final answer
   x = 258,046.83