Finding the Fourth Proportional to 99,835.03, 137,771.65 and 54,513

Step by Step Solution

1. Step 1: Write the proportion equation
   99,835.03 : 137,771.65 = 54,513 : x
2. Step 2: Convert to fraction form
   99,835.03/137,771.65 = 54,513/x
3. Step 3: Cross multiply
   99,835.03x = 137,771.65 × 54,513
4. Step 4: Simplify right side
   99,835.03x = 7,510,346,024.59
5. Step 5: Solve for x
   x = 7,510,346,024.59/99,835.03
6. Step 6: Final answer
   x = 75,227.56