Finding the Fourth Proportional to 42,752.31, 64,093.88 and 17,811.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,752.31 : 64,093.88 = 17,811.09 : x
2. Step 2: Convert to fraction form
   42,752.31/64,093.88 = 17,811.09/x
3. Step 3: Cross multiply
   42,752.31x = 64,093.88 × 17,811.09
4. Step 4: Simplify right side
   42,752.31x = 1,141,581,776.07
5. Step 5: Solve for x
   x = 1,141,581,776.07/42,752.31
6. Step 6: Final answer
   x = 26,702.22