Finding the Fourth Proportional to 52,488.96, 72,434.79 and 28,615.14

Step by Step Solution

1. Step 1: Write the proportion equation
   52,488.96 : 72,434.79 = 28,615.14 : x
2. Step 2: Convert to fraction form
   52,488.96/72,434.79 = 28,615.14/x
3. Step 3: Cross multiply
   52,488.96x = 72,434.79 × 28,615.14
4. Step 4: Simplify right side
   52,488.96x = 2,072,731,656.72
5. Step 5: Solve for x
   x = 2,072,731,656.72/52,488.96
6. Step 6: Final answer
   x = 39,488.91