Finding the Fourth Proportional to 99,784.24, 137,701.02 and 54,462.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,784.24 : 137,701.02 = 54,462.94 : x
2. Step 2: Convert to fraction form
   99,784.24/137,701.02 = 54,462.94/x
3. Step 3: Cross multiply
   99,784.24x = 137,701.02 × 54,462.94
4. Step 4: Simplify right side
   99,784.24x = 7,499,602,390.20
5. Step 5: Solve for x
   x = 7,499,602,390.20/99,784.24
6. Step 6: Final answer
   x = 75,158.19