Finding the Fourth Proportional to 148,468.78, 204,980.34 and 103,132.18

Step by Step Solution

1. Step 1: Write the proportion equation
   148,468.78 : 204,980.34 = 103,132.18 : x
2. Step 2: Convert to fraction form
   148,468.78/204,980.34 = 103,132.18/x
3. Step 3: Cross multiply
   148,468.78x = 204,980.34 × 103,132.18
4. Step 4: Simplify right side
   148,468.78x = 21,140,069,321.34
5. Step 5: Solve for x
   x = 21,140,069,321.34/148,468.78
6. Step 6: Final answer
   x = 142,387.30