Finding the Fourth Proportional to 101,008.29, 139,387.85 and 55,066.98

Step by Step Solution

1. Step 1: Write the proportion equation
   101,008.29 : 139,387.85 = 55,066.98 : x
2. Step 2: Convert to fraction form
   101,008.29/139,387.85 = 55,066.98/x
3. Step 3: Cross multiply
   101,008.29x = 139,387.85 × 55,066.98
4. Step 4: Simplify right side
   101,008.29x = 7,675,667,672.86
5. Step 5: Solve for x
   x = 7,675,667,672.86/101,008.29
6. Step 6: Final answer
   x = 75,990.47