Finding the Fourth Proportional to 89,744.88, 134,619.40 and 42,946.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,744.88 : 134,619.40 = 42,946.32 : x
2. Step 2: Convert to fraction form
   89,744.88/134,619.40 = 42,946.32/x
3. Step 3: Cross multiply
   89,744.88x = 134,619.40 × 42,946.32
4. Step 4: Simplify right side
   89,744.88x = 5,781,407,830.61
5. Step 5: Solve for x
   x = 5,781,407,830.61/89,744.88
6. Step 6: Final answer
   x = 64,420.48