Finding the Fourth Proportional to 920,592,748.50, 1,381,433,929.98 and 338,735,601.72

Step by Step Solution

1. Step 1: Write the proportion equation
   920,592,748.50 : 1,381,433,929.98 = 338,735,601.72 : x
2. Step 2: Convert to fraction form
   920,592,748.50/1,381,433,929.98 = 338,735,601.72/x
3. Step 3: Cross multiply
   920,592,748.50x = 1,381,433,929.98 × 338,735,601.72
4. Step 4: Simplify right side
   920,592,748.50x = 467,940,853,508,199,680
5. Step 5: Solve for x
   x = 467,940,853,508,199,680/920,592,748.50
6. Step 6: Final answer
   x = 508,303,866.47