Finding the Fourth Proportional to 139,860.08, 193,001.77 and 76,196.51

Step by Step Solution

1. Step 1: Write the proportion equation
   139,860.08 : 193,001.77 = 76,196.51 : x
2. Step 2: Convert to fraction form
   139,860.08/193,001.77 = 76,196.51/x
3. Step 3: Cross multiply
   139,860.08x = 193,001.77 × 76,196.51
4. Step 4: Simplify right side
   139,860.08x = 14,706,061,297.82
5. Step 5: Solve for x
   x = 14,706,061,297.82/139,860.08
6. Step 6: Final answer
   x = 105,148.38