Finding the Fourth Proportional to 101,261.34, 139,678.83 and 71,002.98

Step by Step Solution

1. Step 1: Write the proportion equation
   101,261.34 : 139,678.83 = 71,002.98 : x
2. Step 2: Convert to fraction form
   101,261.34/139,678.83 = 71,002.98/x
3. Step 3: Cross multiply
   101,261.34x = 139,678.83 × 71,002.98
4. Step 4: Simplify right side
   101,261.34x = 9,917,613,172.91
5. Step 5: Solve for x
   x = 9,917,613,172.91/101,261.34
6. Step 6: Final answer
   x = 97,940.77