Finding the Fourth Proportional to 92,778.51, 139,186.52 and 39,470.39

Step by Step Solution

1. Step 1: Write the proportion equation
   92,778.51 : 139,186.52 = 39,470.39 : x
2. Step 2: Convert to fraction form
   92,778.51/139,186.52 = 39,470.39/x
3. Step 3: Cross multiply
   92,778.51x = 139,186.52 × 39,470.39
4. Step 4: Simplify right side
   92,778.51x = 5,493,746,003.82
5. Step 5: Solve for x
   x = 5,493,746,003.82/92,778.51
6. Step 6: Final answer
   x = 59,213.56