Finding the Fourth Proportional to 101,290.41, 139,773.47 and 55,967.87

Step by Step Solution

1. Step 1: Write the proportion equation
   101,290.41 : 139,773.47 = 55,967.87 : x
2. Step 2: Convert to fraction form
   101,290.41/139,773.47 = 55,967.87/x
3. Step 3: Cross multiply
   101,290.41x = 139,773.47 × 55,967.87
4. Step 4: Simplify right side
   101,290.41x = 7,822,823,468.00
5. Step 5: Solve for x
   x = 7,822,823,468.00/101,290.41
6. Step 6: Final answer
   x = 77,231.63