Finding the Fourth Proportional to 28,411.02, 42,638.55 and 22,877.91

Step by Step Solution

1. Step 1: Write the proportion equation
   28,411.02 : 42,638.55 = 22,877.91 : x
2. Step 2: Convert to fraction form
   28,411.02/42,638.55 = 22,877.91/x
3. Step 3: Cross multiply
   28,411.02x = 42,638.55 × 22,877.91
4. Step 4: Simplify right side
   28,411.02x = 975,480,909.43
5. Step 5: Solve for x
   x = 975,480,909.43/28,411.02
6. Step 6: Final answer
   x = 34,334.60