Finding the Fourth Proportional to 1,152,018,434.78, 1,589,788,203.49 and 623,388,093.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,018,434.78 : 1,589,788,203.49 = 623,388,093.37 : x
2. Step 2: Convert to fraction form
   1,152,018,434.78/1,589,788,203.49 = 623,388,093.37/x
3. Step 3: Cross multiply
   1,152,018,434.78x = 1,589,788,203.49 × 623,388,093.37
4. Step 4: Simplify right side
   1,152,018,434.78x = 991,055,037,032,584,576
5. Step 5: Solve for x
   x = 991,055,037,032,584,576/1,152,018,434.78
6. Step 6: Final answer
   x = 860,277,064.25