Finding the Fourth Proportional to 101,003.99, 139,385.93 and 55,680.93

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.99 : 139,385.93 = 55,680.93 : x
2. Step 2: Convert to fraction form
   101,003.99/139,385.93 = 55,680.93/x
3. Step 3: Cross multiply
   101,003.99x = 139,385.93 × 55,680.93
4. Step 4: Simplify right side
   101,003.99x = 7,761,137,932.91
5. Step 5: Solve for x
   x = 7,761,137,932.91/101,003.99
6. Step 6: Final answer
   x = 76,839.92