Finding the Fourth Proportional to 101,012, 139,400.88 and 56,300

Step by Step Solution

1. Step 1: Write the proportion equation
   101,012 : 139,400.88 = 56,300 : x
2. Step 2: Convert to fraction form
   101,012/139,400.88 = 56,300/x
3. Step 3: Cross multiply
   101,012x = 139,400.88 × 56,300
4. Step 4: Simplify right side
   101,012x = 7,848,269,544
5. Step 5: Solve for x
   x = 7,848,269,544/101,012
6. Step 6: Final answer
   x = 77,696.41