Finding the Fourth Proportional to 1,551,978,272.52, 2,141,410,301.01 and 891,801,004.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,978,272.52 : 2,141,410,301.01 = 891,801,004.68 : x
2. Step 2: Convert to fraction form
   1,551,978,272.52/2,141,410,301.01 = 891,801,004.68/x
3. Step 3: Cross multiply
   1,551,978,272.52x = 2,141,410,301.01 × 891,801,004.68
4. Step 4: Simplify right side
   1,551,978,272.52x = 1,909,711,857,872,819,200
5. Step 5: Solve for x
   x = 1,909,711,857,872,819,200/1,551,978,272.52
6. Step 6: Final answer
   x = 1,230,501,671.12