Finding the Fourth Proportional to 37,141,440.78, 51,256,789.08 and 20,621,566.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,141,440.78 : 51,256,789.08 = 20,621,566.15 : x
2. Step 2: Convert to fraction form
   37,141,440.78/51,256,789.08 = 20,621,566.15/x
3. Step 3: Cross multiply
   37,141,440.78x = 51,256,789.08 × 20,621,566.15
4. Step 4: Simplify right side
   37,141,440.78x = 1,056,995,266,649,817.50
5. Step 5: Solve for x
   x = 1,056,995,266,649,817.50/37,141,440.78
6. Step 6: Final answer
   x = 28,458,650.08