Finding the Fourth Proportional to 101,381.46, 139,904.36 and 56,061.35

Step by Step Solution

1. Step 1: Write the proportion equation
   101,381.46 : 139,904.36 = 56,061.35 : x
2. Step 2: Convert to fraction form
   101,381.46/139,904.36 = 56,061.35/x
3. Step 3: Cross multiply
   101,381.46x = 139,904.36 × 56,061.35
4. Step 4: Simplify right side
   101,381.46x = 7,843,227,362.87
5. Step 5: Solve for x
   x = 7,843,227,362.87/101,381.46
6. Step 6: Final answer
   x = 77,363.53