Finding the Fourth Proportional to 115,132.56, 172,684.71 and 30,899.35

Step by Step Solution

1. Step 1: Write the proportion equation
   115,132.56 : 172,684.71 = 30,899.35 : x
2. Step 2: Convert to fraction form
   115,132.56/172,684.71 = 30,899.35/x
3. Step 3: Cross multiply
   115,132.56x = 172,684.71 × 30,899.35
4. Step 4: Simplify right side
   115,132.56x = 5,335,845,293.94
5. Step 5: Solve for x
   x = 5,335,845,293.94/115,132.56
6. Step 6: Final answer
   x = 46,345.23