Finding the Fourth Proportional to 99,128.88, 148,674.29 and 28,050.93

Step by Step Solution

1. Step 1: Write the proportion equation
   99,128.88 : 148,674.29 = 28,050.93 : x
2. Step 2: Convert to fraction form
   99,128.88/148,674.29 = 28,050.93/x
3. Step 3: Cross multiply
   99,128.88x = 148,674.29 × 28,050.93
4. Step 4: Simplify right side
   99,128.88x = 4,170,451,961.34
5. Step 5: Solve for x
   x = 4,170,451,961.34/99,128.88
6. Step 6: Final answer
   x = 42,071.01