Finding the Fourth Proportional to 137,892.52, 206,834.64 and 38,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,892.52 : 206,834.64 = 38,058.72 : x
2. Step 2: Convert to fraction form
   137,892.52/206,834.64 = 38,058.72/x
3. Step 3: Cross multiply
   137,892.52x = 206,834.64 × 38,058.72
4. Step 4: Simplify right side
   137,892.52x = 7,871,861,650.06
5. Step 5: Solve for x
   x = 7,871,861,650.06/137,892.52
6. Step 6: Final answer
   x = 57,086.94