Finding the Fourth Proportional to 101,009.99, 139,394.72 and 55,689.58

Step by Step Solution

1. Step 1: Write the proportion equation
   101,009.99 : 139,394.72 = 55,689.58 : x
2. Step 2: Convert to fraction form
   101,009.99/139,394.72 = 55,689.58/x
3. Step 3: Cross multiply
   101,009.99x = 139,394.72 × 55,689.58
4. Step 4: Simplify right side
   101,009.99x = 7,762,832,940.39
5. Step 5: Solve for x
   x = 7,762,832,940.39/101,009.99
6. Step 6: Final answer
   x = 76,852.13