Finding the Fourth Proportional to 42,922.86, 64,402.79 and 23,215.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,922.86 : 64,402.79 = 23,215.29 : x
2. Step 2: Convert to fraction form
   42,922.86/64,402.79 = 23,215.29/x
3. Step 3: Cross multiply
   42,922.86x = 64,402.79 × 23,215.29
4. Step 4: Simplify right side
   42,922.86x = 1,495,129,446.66
5. Step 5: Solve for x
   x = 1,495,129,446.66/42,922.86
6. Step 6: Final answer
   x = 34,832.94