Finding the Fourth Proportional to 92,932.38, 139,382.12 and 42,319.80

Step by Step Solution

1. Step 1: Write the proportion equation
   92,932.38 : 139,382.12 = 42,319.80 : x
2. Step 2: Convert to fraction form
   92,932.38/139,382.12 = 42,319.80/x
3. Step 3: Cross multiply
   92,932.38x = 139,382.12 × 42,319.80
4. Step 4: Simplify right side
   92,932.38x = 5,898,623,441.98
5. Step 5: Solve for x
   x = 5,898,623,441.98/92,932.38
6. Step 6: Final answer
   x = 63,472.21