Finding the Fourth Proportional to 85,848.64, 128,706.72 and 32,539.84

Step by Step Solution

1. Step 1: Write the proportion equation
   85,848.64 : 128,706.72 = 32,539.84 : x
2. Step 2: Convert to fraction form
   85,848.64/128,706.72 = 32,539.84/x
3. Step 3: Cross multiply
   85,848.64x = 128,706.72 × 32,539.84
4. Step 4: Simplify right side
   85,848.64x = 4,188,096,075.72
5. Step 5: Solve for x
   x = 4,188,096,075.72/85,848.64
6. Step 6: Final answer
   x = 48,784.65