Finding the Fourth Proportional to 647,870,616.02, 894,678,926.72 and 612,575,038.12

Step by Step Solution

1. Step 1: Write the proportion equation
   647,870,616.02 : 894,678,926.72 = 612,575,038.12 : x
2. Step 2: Convert to fraction form
   647,870,616.02/894,678,926.72 = 612,575,038.12/x
3. Step 3: Cross multiply
   647,870,616.02x = 894,678,926.72 × 612,575,038.12
4. Step 4: Simplify right side
   647,870,616.02x = 548,057,977,640,664,704
5. Step 5: Solve for x
   x = 548,057,977,640,664,704/647,870,616.02
6. Step 6: Final answer
   x = 845,937,389.49