Finding the Fourth Proportional to 99,012.56, 148,516.38 and 28,892.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99,012.56 : 148,516.38 = 28,892.48 : x
2. Step 2: Convert to fraction form
   99,012.56/148,516.38 = 28,892.48/x
3. Step 3: Cross multiply
   99,012.56x = 148,516.38 × 28,892.48
4. Step 4: Simplify right side
   99,012.56x = 4,291,005,796.24
5. Step 5: Solve for x
   x = 4,291,005,796.24/99,012.56
6. Step 6: Final answer
   x = 43,338.00