Finding the Fourth Proportional to 99,131.37, 148,705.20 and 28,054.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99,131.37 : 148,705.20 = 28,054.14 : x
2. Step 2: Convert to fraction form
   99,131.37/148,705.20 = 28,054.14/x
3. Step 3: Cross multiply
   99,131.37x = 148,705.20 × 28,054.14
4. Step 4: Simplify right side
   99,131.37x = 4,171,796,499.53
5. Step 5: Solve for x
   x = 4,171,796,499.53/99,131.37
6. Step 6: Final answer
   x = 42,083.52