Finding the Fourth Proportional to 139,968,221.05, 195,502,013.15 and 139,968,221.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,221.05 : 195,502,013.15 = 139,968,221.05 : x
2. Step 2: Convert to fraction form
   139,968,221.05/195,502,013.15 = 139,968,221.05/x
3. Step 3: Cross multiply
   139,968,221.05x = 195,502,013.15 × 139,968,221.05
4. Step 4: Simplify right side
   139,968,221.05x = 27,364,068,992,299,208
5. Step 5: Solve for x
   x = 27,364,068,992,299,208/139,968,221.05
6. Step 6: Final answer
   x = 195,502,013.15