Finding the Fourth Proportional to 90,151.59, 124,438.77 and 63,300.81

Step by Step Solution

1. Step 1: Write the proportion equation
   90,151.59 : 124,438.77 = 63,300.81 : x
2. Step 2: Convert to fraction form
   90,151.59/124,438.77 = 63,300.81/x
3. Step 3: Cross multiply
   90,151.59x = 124,438.77 × 63,300.81
4. Step 4: Simplify right side
   90,151.59x = 7,877,074,936.40
5. Step 5: Solve for x
   x = 7,877,074,936.40/90,151.59
6. Step 6: Final answer
   x = 87,375.88