Finding the Fourth Proportional to 30,998,061.97, 42,783,247.83 and 20,525,606.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,998,061.97 : 42,783,247.83 = 20,525,606.98 : x
2. Step 2: Convert to fraction form
   30,998,061.97/42,783,247.83 = 20,525,606.98/x
3. Step 3: Cross multiply
   30,998,061.97x = 42,783,247.83 × 20,525,606.98
4. Step 4: Simplify right side
   30,998,061.97x = 878,152,130,286,517.88
5. Step 5: Solve for x
   x = 878,152,130,286,517.88/30,998,061.97
6. Step 6: Final answer
   x = 28,329,259.14