Finding the Fourth Proportional to 37,066.32, 51,151.55 and 21,155.90

Step by Step Solution

1. Step 1: Write the proportion equation
   37,066.32 : 51,151.55 = 21,155.90 : x
2. Step 2: Convert to fraction form
   37,066.32/51,151.55 = 21,155.90/x
3. Step 3: Cross multiply
   37,066.32x = 51,151.55 × 21,155.90
4. Step 4: Simplify right side
   37,066.32x = 1,082,156,715.11
5. Step 5: Solve for x
   x = 1,082,156,715.11/37,066.32
6. Step 6: Final answer
   x = 29,195.15