Finding the Fourth Proportional to 37,258.16, 51,417.59 and 21,345.69

Step by Step Solution

1. Step 1: Write the proportion equation
   37,258.16 : 51,417.59 = 21,345.69 : x
2. Step 2: Convert to fraction form
   37,258.16/51,417.59 = 21,345.69/x
3. Step 3: Cross multiply
   37,258.16x = 51,417.59 × 21,345.69
4. Step 4: Simplify right side
   37,258.16x = 1,097,543,805.86
5. Step 5: Solve for x
   x = 1,097,543,805.86/37,258.16
6. Step 6: Final answer
   x = 29,457.81