Finding the Fourth Proportional to 52,513.52, 78,769.88 and 13,070.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,513.52 : 78,769.88 = 13,070.37 : x
2. Step 2: Convert to fraction form
   52,513.52/78,769.88 = 13,070.37/x
3. Step 3: Cross multiply
   52,513.52x = 78,769.88 × 13,070.37
4. Step 4: Simplify right side
   52,513.52x = 1,029,551,411.10
5. Step 5: Solve for x
   x = 1,029,551,411.10/52,513.52
6. Step 6: Final answer
   x = 19,605.45