Finding the Fourth Proportional to 98,873.34, 136,453.60 and 55,860.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,873.34 : 136,453.60 = 55,860.72 : x
2. Step 2: Convert to fraction form
   98,873.34/136,453.60 = 55,860.72/x
3. Step 3: Cross multiply
   98,873.34x = 136,453.60 × 55,860.72
4. Step 4: Simplify right side
   98,873.34x = 7,622,396,342.59
5. Step 5: Solve for x
   x = 7,622,396,342.59/98,873.34
6. Step 6: Final answer
   x = 77,092.53