Finding the Fourth Proportional to 238,426.50, 357,803.78 and 98,185.12

Step by Step Solution

1. Step 1: Write the proportion equation
   238,426.50 : 357,803.78 = 98,185.12 : x
2. Step 2: Convert to fraction form
   238,426.50/357,803.78 = 98,185.12/x
3. Step 3: Cross multiply
   238,426.50x = 357,803.78 × 98,185.12
4. Step 4: Simplify right side
   238,426.50x = 35,131,007,075.75
5. Step 5: Solve for x
   x = 35,131,007,075.75/238,426.50
6. Step 6: Final answer
   x = 147,345.23