Finding the Fourth Proportional to 124,499.67, 171,810.44 and 70,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499.67 : 171,810.44 = 70,781.50 : x
2. Step 2: Convert to fraction form
   124,499.67/171,810.44 = 70,781.50/x
3. Step 3: Cross multiply
   124,499.67x = 171,810.44 × 70,781.50
4. Step 4: Simplify right side
   124,499.67x = 12,161,000,658.86
5. Step 5: Solve for x
   x = 12,161,000,658.86/124,499.67
6. Step 6: Final answer
   x = 97,678.98