Finding the Fourth Proportional to 98,061.48, 135,160.38 and 75,083.40

Step by Step Solution

1. Step 1: Write the proportion equation
   98,061.48 : 135,160.38 = 75,083.40 : x
2. Step 2: Convert to fraction form
   98,061.48/135,160.38 = 75,083.40/x
3. Step 3: Cross multiply
   98,061.48x = 135,160.38 × 75,083.40
4. Step 4: Simplify right side
   98,061.48x = 10,148,300,875.69
5. Step 5: Solve for x
   x = 10,148,300,875.69/98,061.48
6. Step 6: Final answer
   x = 103,489.17