Finding the Fourth Proportional to 80,942,449.58, 121,353,837.99 and 42,025,025.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,942,449.58 : 121,353,837.99 = 42,025,025.18 : x
2. Step 2: Convert to fraction form
   80,942,449.58/121,353,837.99 = 42,025,025.18/x
3. Step 3: Cross multiply
   80,942,449.58x = 121,353,837.99 × 42,025,025.18
4. Step 4: Simplify right side
   80,942,449.58x = 5,099,898,097,219,390
5. Step 5: Solve for x
   x = 5,099,898,097,219,390/80,942,449.58
6. Step 6: Final answer
   x = 63,006,470.94