Finding the Fourth Proportional to 52,146.32, 78,218.55 and 12,703.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,146.32 : 78,218.55 = 12,703.34 : x
2. Step 2: Convert to fraction form
   52,146.32/78,218.55 = 12,703.34/x
3. Step 3: Cross multiply
   52,146.32x = 78,218.55 × 12,703.34
4. Step 4: Simplify right side
   52,146.32x = 993,636,834.96
5. Step 5: Solve for x
   x = 993,636,834.96/52,146.32
6. Step 6: Final answer
   x = 19,054.78