Finding the Fourth Proportional to 90,501.72, 124,947.38 and 70,320.53

Step by Step Solution

1. Step 1: Write the proportion equation
   90,501.72 : 124,947.38 = 70,320.53 : x
2. Step 2: Convert to fraction form
   90,501.72/124,947.38 = 70,320.53/x
3. Step 3: Cross multiply
   90,501.72x = 124,947.38 × 70,320.53
4. Step 4: Simplify right side
   90,501.72x = 8,786,365,534.78
5. Step 5: Solve for x
   x = 8,786,365,534.78/90,501.72
6. Step 6: Final answer
   x = 97,085.07