Finding the Fourth Proportional to 98,417, 135,814.72 and 55,975.48

Step by Step Solution

1. Step 1: Write the proportion equation
   98,417 : 135,814.72 = 55,975.48 : x
2. Step 2: Convert to fraction form
   98,417/135,814.72 = 55,975.48/x
3. Step 3: Cross multiply
   98,417x = 135,814.72 × 55,975.48
4. Step 4: Simplify right side
   98,417x = 7,602,294,143.07
5. Step 5: Solve for x
   x = 7,602,294,143.07/98,417
6. Step 6: Final answer
   x = 77,245.74