Finding the Fourth Proportional to 101,003.76, 139,303.40 and 88,878.06

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.76 : 139,303.40 = 88,878.06 : x
2. Step 2: Convert to fraction form
   101,003.76/139,303.40 = 88,878.06/x
3. Step 3: Cross multiply
   101,003.76x = 139,303.40 × 88,878.06
4. Step 4: Simplify right side
   101,003.76x = 12,381,015,499.01
5. Step 5: Solve for x
   x = 12,381,015,499.01/101,003.76
6. Step 6: Final answer
   x = 122,579.75