Finding the Fourth Proportional to 83,384.28, 115,090.56 and 51,534

Step by Step Solution

1. Step 1: Write the proportion equation
   83,384.28 : 115,090.56 = 51,534 : x
2. Step 2: Convert to fraction form
   83,384.28/115,090.56 = 51,534/x
3. Step 3: Cross multiply
   83,384.28x = 115,090.56 × 51,534
4. Step 4: Simplify right side
   83,384.28x = 5,931,076,919.04
5. Step 5: Solve for x
   x = 5,931,076,919.04/83,384.28
6. Step 6: Final answer
   x = 71,129.44