Finding the Fourth Proportional to 92,799.42, 139,136.62 and 42,851.98

Step by Step Solution

1. Step 1: Write the proportion equation
   92,799.42 : 139,136.62 = 42,851.98 : x
2. Step 2: Convert to fraction form
   92,799.42/139,136.62 = 42,851.98/x
3. Step 3: Cross multiply
   92,799.42x = 139,136.62 × 42,851.98
4. Step 4: Simplify right side
   92,799.42x = 5,962,279,657.51
5. Step 5: Solve for x
   x = 5,962,279,657.51/92,799.42
6. Step 6: Final answer
   x = 64,249.10