Finding the Fourth Proportional to 101,402.56, 139,888.98 and 65,604.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,402.56 : 139,888.98 = 65,604.10 : x
2. Step 2: Convert to fraction form
   101,402.56/139,888.98 = 65,604.10/x
3. Step 3: Cross multiply
   101,402.56x = 139,888.98 × 65,604.10
4. Step 4: Simplify right side
   101,402.56x = 9,177,290,632.82
5. Step 5: Solve for x
   x = 9,177,290,632.82/101,402.56
6. Step 6: Final answer
   x = 90,503.54