Finding the Fourth Proportional to 37,978,278.74, 52,409,734.98 and 20,574,499.47

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978,278.74 : 52,409,734.98 = 20,574,499.47 : x
2. Step 2: Convert to fraction form
   37,978,278.74/52,409,734.98 = 20,574,499.47/x
3. Step 3: Cross multiply
   37,978,278.74x = 52,409,734.98 × 20,574,499.47
4. Step 4: Simplify right side
   37,978,278.74x = 1,078,304,064,491,696
5. Step 5: Solve for x
   x = 1,078,304,064,491,696/37,978,278.74
6. Step 6: Final answer
   x = 28,392,652.33