Finding the Fourth Proportional to 37,665,256.96, 51,976,284.08 and 20,921,082.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,665,256.96 : 51,976,284.08 = 20,921,082.56 : x
2. Step 2: Convert to fraction form
   37,665,256.96/51,976,284.08 = 20,921,082.56/x
3. Step 3: Cross multiply
   37,665,256.96x = 51,976,284.08 × 20,921,082.56
4. Step 4: Simplify right side
   37,665,256.96x = 1,087,400,130,399,693.50
5. Step 5: Solve for x
   x = 1,087,400,130,399,693.50/37,665,256.96
6. Step 6: Final answer
   x = 28,870,110.50