Finding the Fourth Proportional to 52,777.91, 72,830.82 and 28,899.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,777.91 : 72,830.82 = 28,899.98 : x
2. Step 2: Convert to fraction form
   52,777.91/72,830.82 = 28,899.98/x
3. Step 3: Cross multiply
   52,777.91x = 72,830.82 × 28,899.98
4. Step 4: Simplify right side
   52,777.91x = 2,104,808,877.23
5. Step 5: Solve for x
   x = 2,104,808,877.23/52,777.91
6. Step 6: Final answer
   x = 39,880.49