Finding the Fourth Proportional to 83,438.72, 125,156.64 and 28,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,438.72 : 125,156.64 = 28,034.72 : x
2. Step 2: Convert to fraction form
   83,438.72/125,156.64 = 28,034.72/x
3. Step 3: Cross multiply
   83,438.72x = 125,156.64 × 28,034.72
4. Step 4: Simplify right side
   83,438.72x = 3,508,731,358.54
5. Step 5: Solve for x
   x = 3,508,731,358.54/83,438.72
6. Step 6: Final answer
   x = 42,051.60