Finding the Fourth Proportional to 42,705.70, 64,123.35 and 32,856.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,705.70 : 64,123.35 = 32,856.10 : x
2. Step 2: Convert to fraction form
   42,705.70/64,123.35 = 32,856.10/x
3. Step 3: Cross multiply
   42,705.70x = 64,123.35 × 32,856.10
4. Step 4: Simplify right side
   42,705.70x = 2,106,843,199.94
5. Step 5: Solve for x
   x = 2,106,843,199.94/42,705.70
6. Step 6: Final answer
   x = 49,334.00