Finding the Fourth Proportional to 99,498.19, 137,308.46 and 57,048.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,498.19 : 137,308.46 = 57,048.52 : x
2. Step 2: Convert to fraction form
   99,498.19/137,308.46 = 57,048.52/x
3. Step 3: Cross multiply
   99,498.19x = 137,308.46 × 57,048.52
4. Step 4: Simplify right side
   99,498.19x = 7,833,244,426.48
5. Step 5: Solve for x
   x = 7,833,244,426.48/99,498.19
6. Step 6: Final answer
   x = 78,727.51