Finding the Fourth Proportional to 52,159.42, 78,204.56 and 18,875.16

Step by Step Solution

1. Step 1: Write the proportion equation
   52,159.42 : 78,204.56 = 18,875.16 : x
2. Step 2: Convert to fraction form
   52,159.42/78,204.56 = 18,875.16/x
3. Step 3: Cross multiply
   52,159.42x = 78,204.56 × 18,875.16
4. Step 4: Simplify right side
   52,159.42x = 1,476,123,191.71
5. Step 5: Solve for x
   x = 1,476,123,191.71/52,159.42
6. Step 6: Final answer
   x = 28,300.22