Finding the Fourth Proportional to 64,047,759, 96,081,591.78 and 21,507,440.28

Step by Step Solution

1. Step 1: Write the proportion equation
   64,047,759 : 96,081,591.78 = 21,507,440.28 : x
2. Step 2: Convert to fraction form
   64,047,759/96,081,591.78 = 21,507,440.28/x
3. Step 3: Cross multiply
   64,047,759x = 96,081,591.78 × 21,507,440.28
4. Step 4: Simplify right side
   64,047,759x = 2,066,469,097,215,689
5. Step 5: Solve for x
   x = 2,066,469,097,215,689/64,047,759
6. Step 6: Final answer
   x = 32,264,502.76