Finding the Fourth Proportional to 100,259.89, 138,356.82 and 59,451.47

Step by Step Solution

1. Step 1: Write the proportion equation
   100,259.89 : 138,356.82 = 59,451.47 : x
2. Step 2: Convert to fraction form
   100,259.89/138,356.82 = 59,451.47/x
3. Step 3: Cross multiply
   100,259.89x = 138,356.82 × 59,451.47
4. Step 4: Simplify right side
   100,259.89x = 8,225,516,333.53
5. Step 5: Solve for x
   x = 8,225,516,333.53/100,259.89
6. Step 6: Final answer
   x = 82,041.94