Finding the Fourth Proportional to 90,500.58, 124,848.81 and 56,487.06

Step by Step Solution

1. Step 1: Write the proportion equation
   90,500.58 : 124,848.81 = 56,487.06 : x
2. Step 2: Convert to fraction form
   90,500.58/124,848.81 = 56,487.06/x
3. Step 3: Cross multiply
   90,500.58x = 124,848.81 × 56,487.06
4. Step 4: Simplify right side
   90,500.58x = 7,052,342,221.40
5. Step 5: Solve for x
   x = 7,052,342,221.40/90,500.58
6. Step 6: Final answer
   x = 77,925.93