Finding the Fourth Proportional to 52,334.52, 78,501.10 and 12,891.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,334.52 : 78,501.10 = 12,891.98 : x
2. Step 2: Convert to fraction form
   52,334.52/78,501.10 = 12,891.98/x
3. Step 3: Cross multiply
   52,334.52x = 78,501.10 × 12,891.98
4. Step 4: Simplify right side
   52,334.52x = 1,012,034,611.18
5. Step 5: Solve for x
   x = 1,012,034,611.18/52,334.52
6. Step 6: Final answer
   x = 19,337.80