Finding the Fourth Proportional to 1,551,978,313.02, 2,141,410,356.81 and 891,801,045.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,978,313.02 : 2,141,410,356.81 = 891,801,045.18 : x
2. Step 2: Convert to fraction form
   1,551,978,313.02/2,141,410,356.81 = 891,801,045.18/x
3. Step 3: Cross multiply
   1,551,978,313.02x = 2,141,410,356.81 × 891,801,045.18
4. Step 4: Simplify right side
   1,551,978,313.02x = 1,909,711,994,362,434,560
5. Step 5: Solve for x
   x = 1,909,711,994,362,434,560/1,551,978,313.02
6. Step 6: Final answer
   x = 1,230,501,726.95