Finding the Fourth Proportional to 101,250.49, 139,725.12 and 55,931.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,250.49 : 139,725.12 = 55,931.59 : x
2. Step 2: Convert to fraction form
   101,250.49/139,725.12 = 55,931.59/x
3. Step 3: Cross multiply
   101,250.49x = 139,725.12 × 55,931.59
4. Step 4: Simplify right side
   101,250.49x = 7,815,048,124.54
5. Step 5: Solve for x
   x = 7,815,048,124.54/101,250.49
6. Step 6: Final answer
   x = 77,185.29