Finding the Fourth Proportional to 98,636.48, 136,131.69 and 55,624.83

Step by Step Solution

1. Step 1: Write the proportion equation
   98,636.48 : 136,131.69 = 55,624.83 : x
2. Step 2: Convert to fraction form
   98,636.48/136,131.69 = 55,624.83/x
3. Step 3: Cross multiply
   98,636.48x = 136,131.69 × 55,624.83
4. Step 4: Simplify right side
   98,636.48x = 7,572,301,499.07
5. Step 5: Solve for x
   x = 7,572,301,499.07/98,636.48
6. Step 6: Final answer
   x = 76,769.78