Finding the Fourth Proportional to 57,685.57, 86,602.16 and 48,975.82

Step by Step Solution

1. Step 1: Write the proportion equation
   57,685.57 : 86,602.16 = 48,975.82 : x
2. Step 2: Convert to fraction form
   57,685.57/86,602.16 = 48,975.82/x
3. Step 3: Cross multiply
   57,685.57x = 86,602.16 × 48,975.82
4. Step 4: Simplify right side
   57,685.57x = 4,241,411,799.77
5. Step 5: Solve for x
   x = 4,241,411,799.77/57,685.57
6. Step 6: Final answer
   x = 73,526.39