Finding the Fourth Proportional to 42,795.42, 64,253.61 and 23,143.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,795.42 : 64,253.61 = 23,143.74 : x
2. Step 2: Convert to fraction form
   42,795.42/64,253.61 = 23,143.74/x
3. Step 3: Cross multiply
   42,795.42x = 64,253.61 × 23,143.74
4. Step 4: Simplify right side
   42,795.42x = 1,487,068,843.90
5. Step 5: Solve for x
   x = 1,487,068,843.90/42,795.42
6. Step 6: Final answer
   x = 34,748.32