Finding the Fourth Proportional to 42,355,932.81, 63,560,775.74 and 18,095,042.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,355,932.81 : 63,560,775.74 = 18,095,042.21 : x
2. Step 2: Convert to fraction form
   42,355,932.81/63,560,775.74 = 18,095,042.21/x
3. Step 3: Cross multiply
   42,355,932.81x = 63,560,775.74 × 18,095,042.21
4. Step 4: Simplify right side
   42,355,932.81x = 1,150,134,919,643,077.50
5. Step 5: Solve for x
   x = 1,150,134,919,643,077.50/42,355,932.81
6. Step 6: Final answer
   x = 27,154,045.33