Finding the Fourth Proportional to 56,870.74, 85,318.59 and 17,430.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,870.74 : 85,318.59 = 17,430.82 : x
2. Step 2: Convert to fraction form
   56,870.74/85,318.59 = 17,430.82/x
3. Step 3: Cross multiply
   56,870.74x = 85,318.59 × 17,430.82
4. Step 4: Simplify right side
   56,870.74x = 1,487,172,984.94
5. Step 5: Solve for x
   x = 1,487,172,984.94/56,870.74
6. Step 6: Final answer
   x = 26,150.06