Finding the Fourth Proportional to 99,514.50, 137,330.01 and 54,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,514.50 : 137,330.01 = 54,802.50 : x
2. Step 2: Convert to fraction form
   99,514.50/137,330.01 = 54,802.50/x
3. Step 3: Cross multiply
   99,514.50x = 137,330.01 × 54,802.50
4. Step 4: Simplify right side
   99,514.50x = 7,526,027,873.03
5. Step 5: Solve for x
   x = 7,526,027,873.03/99,514.50
6. Step 6: Final answer
   x = 75,627.45