Finding the Fourth Proportional to 99,747, 137,650.86 and 55,035

Step by Step Solution

1. Step 1: Write the proportion equation
   99,747 : 137,650.86 = 55,035 : x
2. Step 2: Convert to fraction form
   99,747/137,650.86 = 55,035/x
3. Step 3: Cross multiply
   99,747x = 137,650.86 × 55,035
4. Step 4: Simplify right side
   99,747x = 7,575,615,080.10
5. Step 5: Solve for x
   x = 7,575,615,080.10/99,747
6. Step 6: Final answer
   x = 75,948.30