Finding the Fourth Proportional to 56,949.90, 85,422.71 and 17,505.99

Step by Step Solution

1. Step 1: Write the proportion equation
   56,949.90 : 85,422.71 = 17,505.99 : x
2. Step 2: Convert to fraction form
   56,949.90/85,422.71 = 17,505.99/x
3. Step 3: Cross multiply
   56,949.90x = 85,422.71 × 17,505.99
4. Step 4: Simplify right side
   56,949.90x = 1,495,409,150.80
5. Step 5: Solve for x
   x = 1,495,409,150.80/56,949.90
6. Step 6: Final answer
   x = 26,258.33