Finding the Fourth Proportional to 1,152,023,086.84, 1,589,796,073.62 and 623,387,077.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,023,086.84 : 1,589,796,073.62 = 623,387,077.12 : x
2. Step 2: Convert to fraction form
   1,152,023,086.84/1,589,796,073.62 = 623,387,077.12/x
3. Step 3: Cross multiply
   1,152,023,086.84x = 1,589,796,073.62 × 623,387,077.12
4. Step 4: Simplify right side
   1,152,023,086.84x = 991,058,327,550,824,064
5. Step 5: Solve for x
   x = 991,058,327,550,824,064/1,152,023,086.84
6. Step 6: Final answer
   x = 860,276,446.60