Finding the Fourth Proportional to 45,714.34, 68,267.71 and 45,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,714.34 : 68,267.71 = 45,219.50 : x
2. Step 2: Convert to fraction form
   45,714.34/68,267.71 = 45,219.50/x
3. Step 3: Cross multiply
   45,714.34x = 68,267.71 × 45,219.50
4. Step 4: Simplify right side
   45,714.34x = 3,087,031,712.35
5. Step 5: Solve for x
   x = 3,087,031,712.35/45,714.34
6. Step 6: Final answer
   x = 67,528.74