Finding the Fourth Proportional to 42,748.82, 64,135.06 and 17,800.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,748.82 : 64,135.06 = 17,800.60 : x
2. Step 2: Convert to fraction form
   42,748.82/64,135.06 = 17,800.60/x
3. Step 3: Cross multiply
   42,748.82x = 64,135.06 × 17,800.60
4. Step 4: Simplify right side
   42,748.82x = 1,141,642,549.04
5. Step 5: Solve for x
   x = 1,141,642,549.04/42,748.82
6. Step 6: Final answer
   x = 26,705.83