Finding the Fourth Proportional to 37,181,452.24, 51,311,946.72 and 20,661,515.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,181,452.24 : 51,311,946.72 = 20,661,515.20 : x
2. Step 2: Convert to fraction form
   37,181,452.24/51,311,946.72 = 20,661,515.20/x
3. Step 3: Cross multiply
   37,181,452.24x = 51,311,946.72 × 20,661,515.20
4. Step 4: Simplify right side
   37,181,452.24x = 1,060,182,567,096,870.12
5. Step 5: Solve for x
   x = 1,060,182,567,096,870.12/37,181,452.24
6. Step 6: Final answer
   x = 28,513,748.21