Finding the Fourth Proportional to 99,738.86, 149,432.96 and 88,891.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,738.86 : 149,432.96 = 88,891.34 : x
2. Step 2: Convert to fraction form
   99,738.86/149,432.96 = 88,891.34/x
3. Step 3: Cross multiply
   99,738.86x = 149,432.96 × 88,891.34
4. Step 4: Simplify right side
   99,738.86x = 13,283,296,054.57
5. Step 5: Solve for x
   x = 13,283,296,054.57/99,738.86
6. Step 6: Final answer
   x = 133,180.75