Finding the Fourth Proportional to 173,345.50, 260,018.31 and 48,686.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,345.50 : 260,018.31 = 48,686.50 : x
2. Step 2: Convert to fraction form
   173,345.50/260,018.31 = 48,686.50/x
3. Step 3: Cross multiply
   173,345.50x = 260,018.31 × 48,686.50
4. Step 4: Simplify right side
   173,345.50x = 12,659,381,449.82
5. Step 5: Solve for x
   x = 12,659,381,449.82/173,345.50
6. Step 6: Final answer
   x = 73,029.77