Finding the Fourth Proportional to 30,513,113.50, 42,119,146.04 and 20,203,158.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,513,113.50 : 42,119,146.04 = 20,203,158.10 : x
2. Step 2: Convert to fraction form
   30,513,113.50/42,119,146.04 = 20,203,158.10/x
3. Step 3: Cross multiply
   30,513,113.50x = 42,119,146.04 × 20,203,158.10
4. Step 4: Simplify right side
   30,513,113.50x = 850,939,766,483,109
5. Step 5: Solve for x
   x = 850,939,766,483,109/30,513,113.50
6. Step 6: Final answer
   x = 27,887,674.15