Finding the Fourth Proportional to 148,788.34, 205,357.72 and 88,392.54

Step by Step Solution

1. Step 1: Write the proportion equation
   148,788.34 : 205,357.72 = 88,392.54 : x
2. Step 2: Convert to fraction form
   148,788.34/205,357.72 = 88,392.54/x
3. Step 3: Cross multiply
   148,788.34x = 205,357.72 × 88,392.54
4. Step 4: Simplify right side
   148,788.34x = 18,152,090,479.41
5. Step 5: Solve for x
   x = 18,152,090,479.41/148,788.34
6. Step 6: Final answer
   x = 121,999.42