Finding the Fourth Proportional to 101,326.55, 139,832.53 and 56,007.05

Step by Step Solution

1. Step 1: Write the proportion equation
   101,326.55 : 139,832.53 = 56,007.05 : x
2. Step 2: Convert to fraction form
   101,326.55/139,832.53 = 56,007.05/x
3. Step 3: Cross multiply
   101,326.55x = 139,832.53 × 56,007.05
4. Step 4: Simplify right side
   101,326.55x = 7,831,606,660.16
5. Step 5: Solve for x
   x = 7,831,606,660.16/101,326.55
6. Step 6: Final answer
   x = 77,290.77