Finding the Fourth Proportional to 101,173.86, 139,674.78 and 60,897.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,173.86 : 139,674.78 = 60,897.42 : x
2. Step 2: Convert to fraction form
   101,173.86/139,674.78 = 60,897.42/x
3. Step 3: Cross multiply
   101,173.86x = 139,674.78 × 60,897.42
4. Step 4: Simplify right side
   101,173.86x = 8,505,833,741.07
5. Step 5: Solve for x
   x = 8,505,833,741.07/101,173.86
6. Step 6: Final answer
   x = 84,071.46