Finding the Fourth Proportional to 100,761, 139,050.14 and 55,437.98

Step by Step Solution

1. Step 1: Write the proportion equation
   100,761 : 139,050.14 = 55,437.98 : x
2. Step 2: Convert to fraction form
   100,761/139,050.14 = 55,437.98/x
3. Step 3: Cross multiply
   100,761x = 139,050.14 × 55,437.98
4. Step 4: Simplify right side
   100,761x = 7,708,658,880.32
5. Step 5: Solve for x
   x = 7,708,658,880.32/100,761
6. Step 6: Final answer
   x = 76,504.39