Finding the Fourth Proportional to 21,041,288,040.32, 29,025,968,774.72 and 13,010,061,303.68

Step by Step Solution

1. Step 1: Write the proportion equation
   21,041,288,040.32 : 29,025,968,774.72 = 13,010,061,303.68 : x
2. Step 2: Convert to fraction form
   21,041,288,040.32/29,025,968,774.72 = 13,010,061,303.68/x
3. Step 3: Cross multiply
   21,041,288,040.32x = 29,025,968,774.72 × 13,010,061,303.68
4. Step 4: Simplify right side
   21,041,288,040.32x = 377,629,633,157,808,652,288
5. Step 5: Solve for x
   x = 377,629,633,157,808,652,288/21,041,288,040.32
6. Step 6: Final answer
   x = 17,947,077,785.08