Finding the Fourth Proportional to 98,735, 136,253.40 and 55,714.79

Step by Step Solution

1. Step 1: Write the proportion equation
   98,735 : 136,253.40 = 55,714.79 : x
2. Step 2: Convert to fraction form
   98,735/136,253.40 = 55,714.79/x
3. Step 3: Cross multiply
   98,735x = 136,253.40 × 55,714.79
4. Step 4: Simplify right side
   98,735x = 7,591,329,567.79
5. Step 5: Solve for x
   x = 7,591,329,567.79/98,735
6. Step 6: Final answer
   x = 76,885.90