Finding the Fourth Proportional to 99,574.48, 137,360.16 and 59,259.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,574.48 : 137,360.16 = 59,259.52 : x
2. Step 2: Convert to fraction form
   99,574.48/137,360.16 = 59,259.52/x
3. Step 3: Cross multiply
   99,574.48x = 137,360.16 × 59,259.52
4. Step 4: Simplify right side
   99,574.48x = 8,139,897,148.72
5. Step 5: Solve for x
   x = 8,139,897,148.72/99,574.48
6. Step 6: Final answer
   x = 81,746.82