Finding the Fourth Proportional to 137,989.82, 190,386.69 and 77,554.10

Step by Step Solution

1. Step 1: Write the proportion equation
   137,989.82 : 190,386.69 = 77,554.10 : x
2. Step 2: Convert to fraction form
   137,989.82/190,386.69 = 77,554.10/x
3. Step 3: Cross multiply
   137,989.82x = 190,386.69 × 77,554.10
4. Step 4: Simplify right side
   137,989.82x = 14,765,267,443.00
5. Step 5: Solve for x
   x = 14,765,267,443.00/137,989.82
6. Step 6: Final answer
   x = 107,002.59