Finding the Fourth Proportional to 90,498.22, 124,905.72 and 52,263.99

Step by Step Solution

1. Step 1: Write the proportion equation
   90,498.22 : 124,905.72 = 52,263.99 : x
2. Step 2: Convert to fraction form
   90,498.22/124,905.72 = 52,263.99/x
3. Step 3: Cross multiply
   90,498.22x = 124,905.72 × 52,263.99
4. Step 4: Simplify right side
   90,498.22x = 6,528,071,039.70
5. Step 5: Solve for x
   x = 6,528,071,039.70/90,498.22
6. Step 6: Final answer
   x = 72,134.80