Finding the Fourth Proportional to 171,127.48, 236,061.12 and 99,499.58

Step by Step Solution

1. Step 1: Write the proportion equation
   171,127.48 : 236,061.12 = 99,499.58 : x
2. Step 2: Convert to fraction form
   171,127.48/236,061.12 = 99,499.58/x
3. Step 3: Cross multiply
   171,127.48x = 236,061.12 × 99,499.58
4. Step 4: Simplify right side
   171,127.48x = 23,487,982,294.33
5. Step 5: Solve for x
   x = 23,487,982,294.33/171,127.48
6. Step 6: Final answer
   x = 137,254.30