Finding the Fourth Proportional to 1,551,978,303.52, 2,141,410,343.72 and 891,801,035.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,978,303.52 : 2,141,410,343.72 = 891,801,035.68 : x
2. Step 2: Convert to fraction form
   1,551,978,303.52/2,141,410,343.72 = 891,801,035.68/x
3. Step 3: Cross multiply
   1,551,978,303.52x = 2,141,410,343.72 × 891,801,035.68
4. Step 4: Simplify right side
   1,551,978,303.52x = 1,909,711,962,345,360,640
5. Step 5: Solve for x
   x = 1,909,711,962,345,360,640/1,551,978,303.52
6. Step 6: Final answer
   x = 1,230,501,713.85