Finding the Fourth Proportional to 92,824.61, 139,214.59 and 42,856.70

Step by Step Solution

1. Step 1: Write the proportion equation
   92,824.61 : 139,214.59 = 42,856.70 : x
2. Step 2: Convert to fraction form
   92,824.61/139,214.59 = 42,856.70/x
3. Step 3: Cross multiply
   92,824.61x = 139,214.59 × 42,856.70
4. Step 4: Simplify right side
   92,824.61x = 5,966,277,116.04
5. Step 5: Solve for x
   x = 5,966,277,116.04/92,824.61
6. Step 6: Final answer
   x = 64,274.74