Finding the Fourth Proportional to 37,880.72, 52,275.06 and 20,653.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,880.72 : 52,275.06 = 20,653.10 : x
2. Step 2: Convert to fraction form
   37,880.72/52,275.06 = 20,653.10/x
3. Step 3: Cross multiply
   37,880.72x = 52,275.06 × 20,653.10
4. Step 4: Simplify right side
   37,880.72x = 1,079,642,041.69
5. Step 5: Solve for x
   x = 1,079,642,041.69/37,880.72
6. Step 6: Final answer
   x = 28,501.10