Finding the Fourth Proportional to 219,500.88, 302,926.44 and 123,972.72

Step by Step Solution

1. Step 1: Write the proportion equation
   219,500.88 : 302,926.44 = 123,972.72 : x
2. Step 2: Convert to fraction form
   219,500.88/302,926.44 = 123,972.72/x
3. Step 3: Cross multiply
   219,500.88x = 302,926.44 × 123,972.72
4. Step 4: Simplify right side
   219,500.88x = 37,554,614,726.72
5. Step 5: Solve for x
   x = 37,554,614,726.72/219,500.88
6. Step 6: Final answer
   x = 171,090.95