Finding the Fourth Proportional to 101,013.08, 139,394.41 and 55,071.74

Step by Step Solution

1. Step 1: Write the proportion equation
   101,013.08 : 139,394.41 = 55,071.74 : x
2. Step 2: Convert to fraction form
   101,013.08/139,394.41 = 55,071.74/x
3. Step 3: Cross multiply
   101,013.08x = 139,394.41 × 55,071.74
4. Step 4: Simplify right side
   101,013.08x = 7,676,691,870.32
5. Step 5: Solve for x
   x = 7,676,691,870.32/101,013.08
6. Step 6: Final answer
   x = 75,997.01