Finding the Fourth Proportional to 90,501.81, 124,896.71 and 56,530.41

Step by Step Solution

1. Step 1: Write the proportion equation
   90,501.81 : 124,896.71 = 56,530.41 : x
2. Step 2: Convert to fraction form
   90,501.81/124,896.71 = 56,530.41/x
3. Step 3: Cross multiply
   90,501.81x = 124,896.71 × 56,530.41
4. Step 4: Simplify right side
   90,501.81x = 7,060,461,941.30
5. Step 5: Solve for x
   x = 7,060,461,941.30/90,501.81
6. Step 6: Final answer
   x = 78,014.59