Finding the Fourth Proportional to 42,992.51, 64,052.92 and 40,875.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,992.51 : 64,052.92 = 40,875.10 : x
2. Step 2: Convert to fraction form
   42,992.51/64,052.92 = 40,875.10/x
3. Step 3: Cross multiply
   42,992.51x = 64,052.92 × 40,875.10
4. Step 4: Simplify right side
   42,992.51x = 2,618,169,401.25
5. Step 5: Solve for x
   x = 2,618,169,401.25/42,992.51
6. Step 6: Final answer
   x = 60,898.28