Finding the Fourth Proportional to 101,168.43, 139,606.47 and 55,845.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,168.43 : 139,606.47 = 55,845.30 : x
2. Step 2: Convert to fraction form
   101,168.43/139,606.47 = 55,845.30/x
3. Step 3: Cross multiply
   101,168.43x = 139,606.47 × 55,845.30
4. Step 4: Simplify right side
   101,168.43x = 7,796,365,199.09
5. Step 5: Solve for x
   x = 7,796,365,199.09/101,168.43
6. Step 6: Final answer
   x = 77,063.22