Finding the Fourth Proportional to 101,003.86, 139,385.28 and 55,682.61

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.86 : 139,385.28 = 55,682.61 : x
2. Step 2: Convert to fraction form
   101,003.86/139,385.28 = 55,682.61/x
3. Step 3: Cross multiply
   101,003.86x = 139,385.28 × 55,682.61
4. Step 4: Simplify right side
   101,003.86x = 7,761,336,185.98
5. Step 5: Solve for x
   x = 7,761,336,185.98/101,003.86
6. Step 6: Final answer
   x = 76,841.98