Finding the Fourth Proportional to 452,345,123.72, 624,262,935.27 and 340,638,882.72

Step by Step Solution

1. Step 1: Write the proportion equation
   452,345,123.72 : 624,262,935.27 = 340,638,882.72 : x
2. Step 2: Convert to fraction form
   452,345,123.72/624,262,935.27 = 340,638,882.72/x
3. Step 3: Cross multiply
   452,345,123.72x = 624,262,935.27 × 340,638,882.72
4. Step 4: Simplify right side
   452,345,123.72x = 212,648,228,793,880,480
5. Step 5: Solve for x
   x = 212,648,228,793,880,480/452,345,123.72
6. Step 6: Final answer
   x = 470,101,737.91