Finding the Fourth Proportional to 42,455,216.10, 63,682,824.15 and 19,780,400.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,455,216.10 : 63,682,824.15 = 19,780,400.10 : x
2. Step 2: Convert to fraction form
   42,455,216.10/63,682,824.15 = 19,780,400.10/x
3. Step 3: Cross multiply
   42,455,216.10x = 63,682,824.15 × 19,780,400.10
4. Step 4: Simplify right side
   42,455,216.10x = 1,259,671,741,184,942.50
5. Step 5: Solve for x
   x = 1,259,671,741,184,942.50/42,455,216.10
6. Step 6: Final answer
   x = 29,670,600.15