Finding the Fourth Proportional to 89,886.48, 134,858.84 and 43,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,886.48 : 134,858.84 = 43,142.96 : x
2. Step 2: Convert to fraction form
   89,886.48/134,858.84 = 43,142.96/x
3. Step 3: Cross multiply
   89,886.48x = 134,858.84 × 43,142.96
4. Step 4: Simplify right side
   89,886.48x = 5,818,209,539.77
5. Step 5: Solve for x
   x = 5,818,209,539.77/89,886.48
6. Step 6: Final answer
   x = 64,728.42