Finding the Fourth Proportional to 98,238.59, 147,357.27 and 28,118.10

Step by Step Solution

1. Step 1: Write the proportion equation
   98,238.59 : 147,357.27 = 28,118.10 : x
2. Step 2: Convert to fraction form
   98,238.59/147,357.27 = 28,118.10/x
3. Step 3: Cross multiply
   98,238.59x = 147,357.27 × 28,118.10
4. Step 4: Simplify right side
   98,238.59x = 4,143,406,453.59
5. Step 5: Solve for x
   x = 4,143,406,453.59/98,238.59
6. Step 6: Final answer
   x = 42,176.98