Finding the Fourth Proportional to 115,345.62, 172,956.78 and 59,162.82

Step by Step Solution

1. Step 1: Write the proportion equation
   115,345.62 : 172,956.78 = 59,162.82 : x
2. Step 2: Convert to fraction form
   115,345.62/172,956.78 = 59,162.82/x
3. Step 3: Cross multiply
   115,345.62x = 172,956.78 × 59,162.82
4. Step 4: Simplify right side
   115,345.62x = 10,232,610,842.92
5. Step 5: Solve for x
   x = 10,232,610,842.92/115,345.62
6. Step 6: Final answer
   x = 88,712.61