Finding the Fourth Proportional to 105,002.34, 157,569.06 and 42,672.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,002.34 : 157,569.06 = 42,672.84 : x
2. Step 2: Convert to fraction form
   105,002.34/157,569.06 = 42,672.84/x
3. Step 3: Cross multiply
   105,002.34x = 157,569.06 × 42,672.84
4. Step 4: Simplify right side
   105,002.34x = 6,723,919,286.33
5. Step 5: Solve for x
   x = 6,723,919,286.33/105,002.34
6. Step 6: Final answer
   x = 64,035.90