Finding the Fourth Proportional to 137,763.31, 190,064.48 and 90,044.17

Step by Step Solution

1. Step 1: Write the proportion equation
   137,763.31 : 190,064.48 = 90,044.17 : x
2. Step 2: Convert to fraction form
   137,763.31/190,064.48 = 90,044.17/x
3. Step 3: Cross multiply
   137,763.31x = 190,064.48 × 90,044.17
4. Step 4: Simplify right side
   137,763.31x = 17,114,197,897.86
5. Step 5: Solve for x
   x = 17,114,197,897.86/137,763.31
6. Step 6: Final answer
   x = 124,229.00