Finding the Fourth Proportional to 92,748.69, 139,106.91 and 42,824.55

Step by Step Solution

1. Step 1: Write the proportion equation
   92,748.69 : 139,106.91 = 42,824.55 : x
2. Step 2: Convert to fraction form
   92,748.69/139,106.91 = 42,824.55/x
3. Step 3: Cross multiply
   92,748.69x = 139,106.91 × 42,824.55
4. Step 4: Simplify right side
   92,748.69x = 5,957,190,822.64
5. Step 5: Solve for x
   x = 5,957,190,822.64/92,748.69
6. Step 6: Final answer
   x = 64,229.38