Finding the Fourth Proportional to 99,783.52, 137,700.19 and 54,461.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99,783.52 : 137,700.19 = 54,461.14 : x
2. Step 2: Convert to fraction form
   99,783.52/137,700.19 = 54,461.14/x
3. Step 3: Cross multiply
   99,783.52x = 137,700.19 × 54,461.14
4. Step 4: Simplify right side
   99,783.52x = 7,499,309,325.62
5. Step 5: Solve for x
   x = 7,499,309,325.62/99,783.52
6. Step 6: Final answer
   x = 75,155.79